| Main Title |
Treatability studies of pesticide manufacturing wastewaters : dazomet / |
| Author |
Monnig, Edward. ;
Zweidinger, Ruth A. ;
Warner, Mary
|
| Other Authors |
|
| CORP Author |
Research Triangle Inst., Research Triangle Park, NC.;Industrial Environmental Research Lab., Research Triangle Park, NC. |
| Publisher |
Industrial Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1980 |
| Report Number |
EPA/600/2-80/077b; PB81-129033; EPA-68-02-2688 |
| Stock Number |
PB81-129033 |
| Subjects |
Sewage--Purification--Biological treatment--Research ;
Water--Pesticide content ;
Dazomet
|
| Additional Subjects |
Water pollution control ;
Pesticides ;
Sulfur organic compounds ;
Manufacturing ;
Industrial waste treatment ;
Activated sludge process ;
Dazomet ;
Biological industrial waste treatment ;
Thiadiazine thione/tetrahydro-dimethyl ;
Chemical oxygen demand
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB81-129033 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
41 pages : illustrations ; 28 cm. |
| Abstract |
The report gives results of laboratory studies of the treatability of manufacturing wastewater from synthesis of the pesticide, dazomet. A tiered approach was taken: the least costly and most available treatments were investigated first. Effluent from the manufacture of dazomet was tested for treatability by activated sludge systems when diluted to 1:100, 1:500, and 1:1000 in municipal wastewater. At 1:100, dazomet showed greater than 95% reduction after biological treatment; however, effluent COD levels were unacceptably high at an average of 160 mg/liter. At 1:500, effluent COD was much closer to the control effluent; however, nitrification of ammonia was severely hampered. At 1:1000, dazomet wastewater had a variable effect on nitrification while effluent COD levels were close to those of controls. It is recommended that dazomet wastewater be diluted to at least 1:1000 in municipal wastewater to minimize the negative effects on the nitrification of ammonia during the activated sludge treatment process. |
| Notes |
"EPA-600/2-80-077b." EPA contract no. 68-02-3688, task no. 109, program element no. 1BB610. EPA project officer: David C. Sanchez. Includes bibliographical references. Microfiche. |
