TECHNOLOGY TRANSFER The Bridge Between Research and Use May 15 1972 ENVIRONMENTAL PROTECTION AGENCY WPCF PRESIDENT PARTICIPATES IN NEW YORK DESIGN SEMINAR Joseph F. Lagnese, President, Water Pollution Control Federation, participated in the Tech- nology Transfer Design Seminar held in New York City February 29 and March 1-2,1972. Mr. Lagnese opened the general discussion session on March 2 with a presentation on the cooperative efforts of the Federation and the Technology Transfer Program. He stated ". . . . there is no question that EPA Technology Transfer, by their special efforts, has achieved a position of respect and prestige with the Federa- tion officially and I am sure with most of our members." Mr. Lagnese further stated: "Possibly even more significant and encouraging than the improved rapport between EPA and professional organizations is that the Federal program, by example of the Technology Transfer effort. Joseph F. Lagnese, President, Water Pollution Control Federa- tion, addressing participants in New York Design Seminar. demonstrates a more serious consideration to the essential role of engineering in the achieve- ment of national water pollution control objectives." One of the points discussed by Mr. Lagnese was that a conflict between the Technology Transfer Process Design Manuals and the WPCF Manuals of Practice does not exist as the respective areas of interest differ. He pointed out that: 1] whereas the MOP's are limited to well-established practices of rather long-term use, the Design Manuals on the other hand relate to process design in areas where research and demonstration has been more recent; and 2] the continued cooperation and coordination between WPCF and Technology Transfer would minimize the potential for overlap, redundancy, and conflict in the future. The importance of this cooperation between the Federation and Technology Transfer was the main theme of Mr. Lagnese's presentation. ".... no other program in EPA or the water pollution control agencies preceding EPA, to my recollection, has had a better record in this regard" he concluded. ANALYTICAL QUALITY CONTROL HANDBOOK linitial distribution of the Handbook for Analytical Quality Control in Water and Wastewater Labora- tories will take place at the 92nd annual meet- ing of the American Water Works Associa- tion to be held in Chi- cago, Illinois, June 4-9, 1972. The Handbook can be obtained at no cost at EPA's Technology Transfer exhibit; it will also be available free of imfccg ANALYTICAL QMTY CCNTKCi Nwe AND V\ASIRAAER IAECRATCRIES ------- charge through the regional Technology Transfer committees listed in the back of this publi- cation. The quality control handbook was prepared for Technology Transfer by the EPA Analytical Quality Control Laboratory in Cincinnati, Ohio. Personnel from both programs will be available at the AWWA meeting to discuss the handbook in more detail, as well as the functions of the AQC Laboratory. Presented below is a summary of the responsibilities and mission of the AQC Laboratory. The AQC Laboratory (Dwight G. Ballinger, Director) is part of the National Environmental Research Center in Cincinnati. Its Mission is the development of physical, biological, and micro- biological methods for the field and laboratory analysis of water, wastewater, and sediment samples. Additional responsibilities include the evaluation of method reliability and the estab- lishment of quality control techniques for EPA laboratories. The Laboratory has a staff of 54 scientists and technicians and an in-house budget of more than $1 million annually. The Laboratory Staff monitors an additional one-half million dollars in contracts and grants related to methods development. Methods research involves im- provements in automated colorimetric proce- dures, investigations of the usefulness of specific ion electrodes, improved methods for pesticides, and the development of techniques for GC-mass spectral identifications. Oil identification tech- niques based upon infrared and gas chromatog- raphy have also been developed by the Labora- tory. Additional investigations include improved methods for heavy metals in water and wastes; the Laboratory has provided EPA methods for mercury in water, sediments, and fish, in response to the current crisis involving that element. Biological field and laboratory methods are also being investigated with particular emphasis on the selection and evaluation of sampling devices, the preparation of detailed identifi- cation guides for micro- and macroorganisms collected in biological surveys, and procedures for the determination of biomass as a pollution indicator. The microbiological staff is engaged in studies of sample preservation, improved tech- niques for coliform, fecal coliform, and fecal strep organisms, and the development of methods for the identification and enumeration of enteric pathogens. In support of the research, a special staff conducts evaluation of EPA methods to deter- mine the applicability, precision, and accuracy, by means of interlaboratory studies. Studies have been completed or are being conducted for nutrient parameters, oxygen demand measure- ments, pesticides in water, heavy metals, and chlorophyll. Methods evaluation reports are pre- pared and distributed to EPA laboratories and other interested groups. The Laboratory also provides a unique service in the form of standard reference samples for water quality and waste analyses. These reference samples, based upon groupings of analytical parameters, are available from the Laboratory at no cost and may be used in the evaluation of individual laboratory tech- niques, analysts' performance, or in the investi- gation of new instrumental measurement systems. The AQC Laboratory is responsible for the development of continuous monitoring instru- ments for use by EPA and other Government agencies. This development includes new sensor systems, computer interfacing with water qual- ity monitoring instruments, improvement in intake design, and a recent development, the use of a satellite for data transmission. Major accomplishments of the AQC Labora- tory are measured in terms of publications. In 1971, the Laboratory distributed more than 10,000 copies of "Methods for Chemical Analy- sis of Water and Wastes." A recent publication of the laboratory is "Methods for Organic Pesticides in Water and Wastewater." In the summer of 1972, the Laboratory will publish "Methods for Collection and Analysis of Bio- logical Field Samples," which is a cooperative effort among the principal biologists in EPA. In addition to publication of methods manuals, the Laboratory also publishes the quarterly AQC Newsletter, which goes out to many laboratories inside and outside the Government and offers a communication device relating to matters of quality control and methods development. The current mailing list for the newsletter numbers more than 5,000. Among the more interesting challenges in methods development are methods for organo- phosphorus pesticides, the use of NMR for organic pollutant identifications, instrumenta- tion for the continuous monitoring of industrial waste effluents, the development of biometric procedures, and improvements in the identifi- cation of oil slicks for enforcement purposes. ------- SECOND PRINTING OF DESIGN MANUALS COMPLETED Technology Transfer has finally received the second printing of the Process Design Manuals initially released last October. Those individuals who have previously requested the manuals should be receiving them shortly; others inter- ested in obtaining the manuals may do so by completing the last page of this fact sheet and forwarding it to the appropriate Regional Tech- nology Transfer Committee Chairman. We express our regrets for the delay involved in distributing these manuals and our thanks to all those who have patiently awaited their receipt. A Seminar was held in New York City during February 29, March 1 and 2, 1972. The program included technical sessions on physical-chemical treatment, nitrogen control, and oxygen aera- tion. Gerald M. Hansler, Regional Administrator, Region II, gave the opening welcome to the 120-plus consulting engineers and state regula- tory personnel in attendance. The oxygen aera- tion session was introduced into the Technology Transfer Program at this seminar and was well received. A highlight of the seminar was a group tour on March 2 to the Newtown Creek Waste- water Treatment Plant where oxygen aeration is being applied to 20 MGD of wastewater. DESIGN SEMINARS The Technology Transfer design seminar program sponsored three seminars since January, 1972, bringing the total number of seminars conducted since the program was initiated to twelve. The most recent seminars were presented in Anaheim, California, January 5 and 6; New York, New York, February 29, March 1, and 2; and Anchorage, Alaska, March 28 and 29, 1972. The Anaheim Seminar included sessions on physical-chemical treatment, nitrogen control, and suspended solids removal. Mr. John D. Park hurst, Vice-President, Water Pollution Control Federation, discussed the EPA Tech- nology Transfer Program with regard to the Federation as part of the opening half-day session. Gerald M. Hausler, Regional Administrator,. Region II, EPA, welcoming the participants in New York. John D. Parkhurst, Vice President, Water Pollution Control Federation, discussing the Technology Transfer Program in Anaheim. PSA (Pressure Swing Adsorption) Oxygen generating unit for 20 mgd oxygen aeration treatment train at Newtown Creek, N.Y. treatment plant. ------- Mr. Joseph F. Lagnese, President, Water Pollu- tion Control Federation, opened the general discussion session March 2, 1972 (see article on first page). The Anchorage Seminar included sessions on physical-chemical treatment and cold climate biological waste treatment. A feature of the cold climate biological waste treatment session was a presentation by Mr. Jack Grainge of the Cana- dian Environmental Protection Service. This session, as with the oxygen aeration session in New York, was included for the first time in the design seminar program. Feature presentations at the above seminars were given by Swindell-Dressier Company, Pitts- burgh, Penna.; Metcalf & Eddy Engineers, Boston, Mass.; Shimek, Roming, Jacobs, & Finklea, Dallas, Texas; CH2M/Hill, Corvallis, Oregon; and EKONO, Seattle, Wash., with assist- ance from Jesse M. Cohen, Edwin F. Barth, Sidney A. Hannah, Joseph B. Farrell, and John M. Smith of the EPA National Environmental Research Center in Cincinnati, Ohio. NEW TECHNOLOGY IN USE FOR INDUSTRIAL POLLUTION CONTROL Following are several examples of the full- scale implementation of new or innovative tech- niques for the control of industrial sources of pollution. These cases are representatives of what can be accomplished in the way of improved industrial pollution control through the use of presently available technology. More specific information on these projects can be obtained from the Technology Transfer Chair- man in the region where the project is located. AMERICAN ENKA CORP. "Zinc Precipitation and Recovery from Viscose Rayon Wastewater." Region IV American Enka, in an EPA Demonstration Project, has won a Finalist Award from the Sports Foundation, Inc. The award, given for achievement in the fight against water pollution, is for a full-scale system for the precipitation and recovery of zinc from the waste stream of their Enka, North Carolina, rayon plant. In the rayon industry, the zinc originates from the zinc sulfate component of the acid spinning bath, and is carried into the waste stream through yarn washing and filter back- View of complete wastewater treating faciliti3s at Enka plant, Enka, North Carol na. The large circular tank in the lower niddle section represents activated sudge plgnt, ^or treatment only of comestic wastes. Zinc recovery system handling process waste water is directly above and slightly to tre left of activated sludge plant. washes. Previously used technology added enough lime to raise the pH to 10.3-11.0, which resulted in a contaminated sludge of low zinc assay. However, the American Enka installation utilizes a new technology in which the waste stream is neutralized with lime to a pH of 6.0, at which point zinc just begins to precipitate. The waste stream is then clarified =nd the clear solution contracted with a circulating dense slurry cf zinc hydroxide precipit=te. The pH is raised to 10.0 with sodium hydroxide. The resultant dense sludge settles easily and is 5-7% zinc hydroxide. It is dissolved with acid and reused. Two thousand pounds of zinc are recovered daily at American Enka at a value of 13.5-14.0 cents/lb. This zinc recovery pays for the cost of the treatment plus a partial amortization of capita- expenditures. Approximately 50 million lbs. of zinc sulfate are used annually by the rayon industry. Since the only rcute for zinc to leave "he spinning process is via e waste stream, this amount of zinc has previously been lost to the environment. EPA Project Officer is Edmond Lomasney of Region IV. VOLVO BRASS AND COPPER CO. "Treat- ment, Recovery and Reuse of Copper Wire Mill Pickling Wastes" Region II The Ken'lworth, New Jersey, copper wire plant of the Volvo Brass and Cooper Company, ------- has made an order-of-magnitude reduction in water usage, eliminated chromium, ammonium and fluoride ion discharges, eliminate dumpings of pickling baths, and is recovering copper normally lost in the waste effluent. This EPA Demonstration Project is an excellent sample of how a combination of process improvements can economically make major reductions in plant waste loads. Water usage of the pickling system was reduced from 150gpm to 10gpm by the use of a chemical rinse solution to neutralize dragout acid from the pickling bath. The neu- tralized chemicals from the chemical rinse treat- ment are then removed by a recycled water rinse. An electrolytic system has been installed to remove copper from the main pickling solu- tion, recovering the copper and regenerating the pickling solution. The third key step is the substitution of hydrogen peroxide as the oxi- dizing agent in the bright pickle solution, elimi- nating chromate, fluoride, and ammonium ions as pollutants. The recovery of the copper plus the elimination of operating problems associated with the use of dischromate as an oxidizing agent has resulted in a reduced operating cost, including amortization of the new installation. EPA project officer is John Ciancia of the Edison Water Research Division, Cincinnati NERC. AMERICAN OIL CO. "Final Purification of Aerated Lagoon Effluent by Chemical Coagula- tionMixed Media Filtration Region III An EPA Demonstration Project involving the American Oil Company has been awarded first place in an Environmental Merits Award Pro- gram sponsored by Petroleum Engineer maga- zine. The award is for the installation of a mixed-media filtration system for the aerated lagoon effluent at Amoco's Yorktown, Virginia refinery. The filter consists of a concrete tank containing layered anthracite coal, silica sand, and ilemenite. Alum is added to the waste stream pipeline prior to the filter. 1400 gpm of waste water is being treated. EPA Project Officer is Leon Meyers of the Robert S. Kerr Research Center, Ada, Oklahoma. TECHNOLOGY TRANSFER PARTICIPATES IN CITY MANAGERS' MEETINGS Technology Transfer participated in the spring meeting of the City Managers' Depart- ment League of California Cities in Coronado, California March 9, 1972 and in the Northwest City Managers' Conference in Glenedon Beach, Oregon, March 11. At these meetings, Tech- nology Transfer participated in workshops con- ducted by Public Technology Inc. aimed at assisting the cities in identifying their needs. TECHNOLOGY TRANSFER EXHIBITS The Technology Transfer display booths are available for appropriate conferences and meet- ings on a request basis. Requests should be made to the Regional Technology Transfer Chairmen (last page of this fact sheet may be used for this purpose). The following is a firm schedule of meetings at which one or more of the exhibits has been or will be displayed. April 19-21 National Pollution Control Conference & Exposition Houston, Texas Exhibit: Upgrading Existing Wastewater Treatment Plants May 10-12 New Jersey Water Pollution Central Association .Conference Attauta City, New Jersey Exhibit: Physical-Chemical Treatment May 14-19 American Industrial Hygiene Conference San Francisco, California Exhibit: Phosphorus Removal June 4-9 American Water Works Association 92nd Annual Conference Chicago, Illinois Exhibit: Analytical Quality Control July 24-26 2nd Urban Technology Conference San Francisco, California Exhibit: Phosphorus Removal Upgrading Existing Wastewater Treatment Plants Physical-Chemical Treatment Analytical Quality Control Sept. 11-14 International Water Supply Congress Rockeffer Center, New York ------- Exhibit: Treating Wastewater Oct. 8-13 - Water Pollution Control Federation 45th Annual Conference Atlanta, Georgia Exhibit: (Under Construction at Present) TECHNOLOGY TRANSFER MATERIAL AVAILABLE Listed on the last page of this fact sheet is a current tabulation of available Technology Transfer publications, audio/visual material, and exhibits. By completing this page and forward- ing it to the appropriate Regional Technology Transfer Committee Chairman, your request(s) will be filled. UPGRADING EXISTING TREATMENT PLANTS The effective transfer of new and/or improved pollution control alternatives is the primary goal of the Technology Transfer Program, and one of the highest priorities of the U. S. Environmental Protection Agency. Incorporation of these tech- nologies in newly designed or constructed facili- ties is a major step towards solving the pollution problems facing the country today. However, a total solution involves the incorporation of these technologies in existing pollution control facili- ties. In the area of domestic sewage far too many of the approximately 12,000 existing sewage treatment plants perform inadequately for one or more of the following reasons: 1) improper plant operation; b) inadequate plant design; c) changes in wastewater flow or characteristics; and d) changes in treatment requirements. Tech- nology is available today to effectively upgrade such facilities to acceptable treatment levels. Detailed discussion of upgrading alternates is contained in the Technology Transfer Process Design Manual for Upgrading Existing Waste- water Treatment Plants, issued October, 1971, and available from the Technology Transfer Program (see last page of this publication). A discussion of the basic technologies involved in upgrading existing sewage treatment plants is presented below. Since the primary clarifier performance signif- icantly affects the overall effluent quality of existing treatment plants, and since clarification is the most economical way to remove sus- pended and colloidal pollutants, every effort should be made to improve the primary clarifi- cation process before additional facilities are considered. The technique of adding chemicals to the primary clarifier is an effective upgrading proce- dure for a secondary plant. The chemicals commonly used in wastewater treatment are the salts of iron and aluminum lime, and synthetic organic polyelectrolytes. The iron (ferrous and ferric) and aluminum salts (sodium aluminate or alum) react with the alkalinity and soluble orthophosphate in wastewater to form precipi- tates of the respective metallic hydroxides or phosphates. In addition, they destabilize the colloidal particles that would otherwise remain in suspension. These precipitates, along with the destabilized colloids, flocculate and settle readily in a clarifier. An example of the effect of polyelectrolyte addition (used either alone or in combination with inorganic coagulants) on primary clarifier performance is that, for several plants, the average values of suspended solids and BOD removals were increased from 38 percent and 31 percent to 65 percent and 47 percent, respec- tively. This indicates that the proper selection and application of polyelectrolytes and chemi- cals to raw wastewater can significantly improve primary clarifier performance. Alum, iron, or polyelectrolyte addition, either in the primary or secondary treatment process, can be used advantageously to improve the overall performance of the treatment system, including phosphorus removal. Lime addition may not be feasible for upgrading activated sludge secondary clarifiers because of the poten- tial adverse effect of recirculated lime sludge on mixed liquor microbial characteristics. Lime addition to primary clarifiers may be used, if consideration is given to controlling the pH within acceptable limits for the subsequent processes, and to changes in sludge character- istics and handling requirements. Tube settlers have been used in primary and secondary clari- fiers to improve performance as well as to increase throughput in existing clarifiers. The results of several studies indicate that the over- flow rates in primary clarifiers can be increased to 5,000 gpd/sq. ft. while producing the same quality effluent as the control unit without the settlers. Tube settlers enhance the ability to capture settleable solids at high overflow rates ------- because the depth of settling has been reduced to a few inches in the tube. It should be realized that tube settlers do not improve the efficiency of primary clarifiers that are already achieving very high (40-60 percent) removals of suspended solids. Moreover, tube settlers will neither remove colloidal solids that remain in suspension nor induce additional coagulation to effect added particle removal. The use of effluent polishing of secondary effluent is a relatively new idea which is receiv- ing increasing attention as a practical and eco- _nomical method of upgrading to obtain in- creased organic and suspended solids removal from existing treatment facilities. It appears to be particularly applicable in those cases (and there are many) where it is necessary to increase efficiency by an overall amount of 10 to 20 percent in order to meet water quality requirements. Four unit processes should be considered for effluent polishing: 1) polishing lagoons; 2) microstraining; 3) filtration,, including mixed, multi-media, and moving-bed filters; and 4) acti- vated carbon adsorption. Polishing lagoons offer an opportunity for increased organic and solids removal at a mini- mum cost. There are two types of polishing lagoons which can be used, aerobic and faculta- tive. Aerobic lagoons are generally subdivided into two groups: 1) shallow lagoons, with depths in the range of 2.5 to 4.0 feet; and 2) deep lagoons, with aeration devices included to insure maintenance of aerobic conditions. Facultative lagoons are characterized by two distinct zones- aerobic and anaerobic. Hydraulic and organic loadings are such that the dissolved oxygen in the lower section of the lagoon is depleted but an aerobic layer is maintained near the surface. Microstraining has application in effluent polishing chiefly as a method of removing additional suspended solids (and their associated BOD) from wastewater treatment plant effluents. The microstrainer consists of a rota- ting drum with a peripheral screen. Influent wastewater enters the drum internally and passes radially outward through the screen, with depo- sition of solids on the inner surface of the drum screen. At the top of the drum pressure jets remove the deposited solids. The backwash water is then collected and returned to the head of the plant. The screens employed in micro- strainers have extremely small openings and are made from a variety of metals and plastics. Individual manufacturers have specific designs and sizes for the particular needs of any poten- tial installation. One of the advantages of using a microstrainer is its low head requirement. It is, therefore, advantageous to transfer secondary effluent, without pumping, to a tertiary microstraining installation in order to minimize the shear forced imparted to the fragile biological floe. Head loss through the microstraining unit, in- cluding inlet and outlet structures is about 12 to 18 inches. Across the screen, a 6-inch limit is usually imposed at peak flows. Head losses in excess of this value are prevented by bypass weirs. Head loss build-up is reduced by increas- ing the rate of drum rotation and by increasing the pressure and flow of the backwashing jets. These adjustments can be made manually or automatically. Microstrainer installations using 23-micron fabric exhibited average solids removals ranging from 57 to 89 percent while the 35-micron fabric exhibited removals of 55 to 73 percent. In practice, the coarses 35-micron fabric is gener- ally used for the removal of coarse solids. Historically, sand filtration has not been an efficient method of polishing secondary treat- ment plant effluent because of low application rates, high head losses, and the need for frequent backwashing. This is largely because the normal backwashing of a sand filter results in a size- graded filter with the finest grains in the upper layers. The resulting stratification removes the bulk of the suspended matter in the upper levels, with a consequent inefficient use of the remain- ing depth of the filter. However, developments in mixed, multi- media, and deep-bed coarse-media filters have necessitated a re-evaluation of the role of filtra- tion in effluent polishing. In general, these modifications permit deeper penetration of the media by the suspended and colloidal contain- ments; thus, there is a more effective utilization of the filer depth as compared to conventional sand filters. The increased utilization of filter depth is somewhat offset by the fact that increased backwashing rates and larger quantities of washwater are required to backwash the media properly. In addition to coarse, mixed, and multi-media filters, a new filtering technique known as a moving-bed filter (MBF) has been developed. The unit is basically a sand filter, but as the filter surface becomes clogged, the filtering ------- medium is moved forward by means of a hydraulically-actuated mechanical diaphragm. The clogged filter surface is removed mechani- cally or by gravity, to the extent that a fresh and clean filtering surface is exposed to the incoming chemically treated liquid. The unit is thus a form of countercurrent extraction device which has the capability of functioning on a contin- uous basis and does not have to be taken off stream for cleaning or backwashing. The limitations of conventional biological treatment processes in regard to reliable achieve- ment of a high degree of organic removal (particularly of certain compounds which are refractory to biodegradation), along with in- creasingly strict water quality standards, empha- size the need for a supplementary organic removal process. Thus, activated carbon is presently being used to provide tertiary treat- ment of biologically treated effluents. Locations where activated carbon has been used successfully to provide tertiary treatment include: Lake Tahoe, Pomona, and Nassau County. Application at these places clearly indicates the ability of activated carbon to produce effluents with very low levels of organics. At Lake Tahoe, the secondary effluent is treated with lime followed by clarification and mixed-media filtration prior to treatment with the activated carbon; at Pomona, secondary effluent is treated directly in activated carbon columns; in Nassau County, secondary effluent is alum-clarified prior to treatment in activated carbon columns. There are at least four methods available for the post-aeration of a wastewater treatment plant's effluent. These are: 1) diffused aeration; 2) mechanical aeration; 3) cascade aeration; and 4) U-tube aeration. Most of these devices were initially developed for water treatment and are now being used in the wastewater treatment field. Of all the types of post-aeration methods, it is likely that mechanical aeration and U-tube aeration will find extensive application in the future. Mechanical aerators are generally grouped in two broad categories: turbine types and pump types. In all types, oxygen transfer occurs through a vortexing action and/or from the interfacial exposure of large volumes of liquid sprayed over the surface. To avoid inter- ference between units, aerator manufacturers recommend a minimum basin size of 15 to 50 feet square and a minimum depth of 5 to 8 feet, depending on the horsepower of the aerator. The U-tube aerator consists of two basic components: a conduit to provide a vertical U-shaped flow path and a device for entraining air into the stream flow in the down leg of the conduit. The entrainment device is one of two types: 1) aspirator; or 2) compressor and dif- fuser. In either case, the entrained air is carried along the down leg of the tube because the water velocity exceeds the buoyant rising veloc- ity of the air bubbles. Various design considera- tions include air-to-water ratio, tube cross- sectional area, and depth. The maximum air-to-water ratio practicable is a function of the velocity through the system. At velocities of approximately 4 fps, 20 percent air-to-water injection requirements for plants of 5 mgd or less should be less than 5 feet. If sufficient head is not available, the flow may be pumped through the U-tube. ------- WHERE TO GET FURTHER INFORMATION In order to get details on items appearing in this publication, or any other aspects of the Technology Transfer Program, contact your appropriate EPA Regional Technology Transfer Committee Chairman from the list below: REGION CHAIRMAN ADDRESS I Lester Sutton Environmental Protection Agency John F. Kennedy Federal Building, Rm. 2304 Boston, Massachusetts 02203 617-223-7210 (Maine, N.H., Vt., Mass., R.I., Conn.) II Rocco Ricci Environmental Protection Agency 26 Federal Plaza New York, New York 10017 201-548-3441 (N.Y., N.J., P.R., V.I.) Environmental Protection Agency 6th & Walnut Philadelphia, Pa. 19106 215-597-9410 (Pa., W. Va Md., Del.,D.C., Va.) Environmental Protection Agency Suite 300 1421 Peachtree St., N.W. Atlanta, Georgia 30309 404-526-5784 (N.C., S.C., Ky Tenn., Ga., Ala., Miss., Fla.) V Clifford Risely Environmental Protection Agency 1 N. Wacker Drive Chicago, Illinois 60606 312-353-5756 (Mich., Wis., Minn., III., Ind., Ohio) VI George Putnicki Environmental Protection Agency 1600 Patterson Street Suite 1100 Dallas, Texas 75201 214-749-3842 (Texas, Okla., Ark., La., N. Mex.) Warren L. Carter IV Asa B. Foster, Jr. ------- REGION VII VIII IX X CHAIRMAN Lynn Harrington Stan Smith Irving Terzich John E. Osborn ADDRESS Environmental Protection Agency 1735 Baltimore Avenue Kansas City, Missouri 64108 816-374-2725 (Kansas, Nebr., Iowa, Mo.) Environmental Protection Agency 1860 Lincoln Street Suite 900 303-837-3961 (Colo., Mont., Wyo., Utah, N.D., S.D.) Environmental Protection Agency 100 California Street San Francisco, Calif. 94111 415-556-7554 (Calif., Nev., Ariz., Hawaii) Environmental Protection Agency 1200 6th Avenue Seattle, Washington 98101 206-442-1266 (Wash., Ore., Idaho, Alaska) ------- REQUEST FOR TECHNOLOGY TRANSFER MATERIAL Please send me the following publications at no charge and add my name to your mailing list for future Technology Transfer publications. (Check appropriate boxes) PROCESS DESIGN MANUALS ~ Phosphorus Removal ~ Carbon Adsorption ~ Suspended Solids Removal ~ Upgrading Existing Wastewater Treatment Plants BROCHURES ~ Physical-Chemical Treatment ~ Phosphorus Removal ~ Upgrading Existing Wastewater Treatment Plants ~ Seattle, Washington METRO ~ Wastewater Purification at Lake Tahoe ~ Indian Creek Reservoir HANDBOOK ~ Analytical Quality Control in Water and Wastewater Laboratories Please contact me regarding the loan of the following audio/visual material. (Check appropriate boxes) MOTION PICTURES (16mm sound) ~ Richardson, Texas, Project Title "Somebody around here must be doing something good." (15 Min.) ~ Phosphorus Removal (5 Min.) VIDEOTAPE ~ Carbon Adsorption (40 Min.) Please forward information on the availability of the following Technology Transfer exhibits. (Check appropriate boxes) EXHIBITS ~ Technology Transfer ~ Phosphorus Removal ~ Physical-Chemical Treatment ~ Upgrading Existing Wastewater Treatment Plants ~ Analytical Quality Control Name. Street City State Zip. ~ U. s. GOVERNMENT PRINTING OFFICE : 1 972 721-396 (662 ) ------- ENVIRONMENTAL PROTECTION AGENCY OFFICIAL BUSINESS PENALTY FOR PRIVATE USE. $300 ------- |