Detoxification of Pesticide-Containing Wastewater with FeIII, Activated Carbon and Fenton Reagent and Its Control Using Three Standardized Bacterial Inhibition Tests
Discharge of toxic industrial wastewaters into biological wastewater treatment plants may result in inhibition of activated sludge bacteria (ASB). In order to find an appropriate method of detoxification, the wastewater of a pesticide-processing plant in Vietnam was treated with three different meth...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2017-12-01
|
| Series: | Water |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4441/9/12/969 |
| _version_ | 1811280039413547008 |
|---|---|
| author | Eduard Rott Timo Pittmann Stephan Wasielewski Amélie Kugele Ralf Minke |
| author_facet | Eduard Rott Timo Pittmann Stephan Wasielewski Amélie Kugele Ralf Minke |
| author_sort | Eduard Rott |
| collection | DOAJ |
| description | Discharge of toxic industrial wastewaters into biological wastewater treatment plants may result in inhibition of activated sludge bacteria (ASB). In order to find an appropriate method of detoxification, the wastewater of a pesticide-processing plant in Vietnam was treated with three different methods (FeIII, powdered activated carbon (PAC), Fenton (FeII/H2O2)) analyzing the detoxification effect with the nitrification inhibition test (NIT), respiration inhibition test (RIT) and luminescent bacteria test (LBT). The heterotrophic ASB were much more resistant to the wastewater than the autotrophic nitrificants. The NIT turned out to be more suitable than the RIT since the NIT was less time-consuming and more reliable. In addition, the marine Aliivibrio fischeri were more sensitive than the nitrificants indicating that a lack of inhibition in the very practical and time-efficient LBT correlates with a lack of nitrification inhibition. With 95%, the Fenton method showed the highest efficiency regarding the chemical oxygen demand (COD) removal. Although similar COD removal (60–65%) was found for both the FeIII and the PAC method, the inhibitory effect of the wastewater was reduced much more strongly with PAC. Both the NIT and the LBT showed that the PAC and Fenton methods led to a similar reduction in the inhibitory effect. |
| first_indexed | 2024-04-13T01:06:25Z |
| format | Article |
| id | doaj.art-42149454b9f9420fb39d828aa890920d |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-04-13T01:06:25Z |
| publishDate | 2017-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-42149454b9f9420fb39d828aa890920d2022-12-22T03:09:18ZengMDPI AGWater2073-44412017-12-0191296910.3390/w9120969w9120969Detoxification of Pesticide-Containing Wastewater with FeIII, Activated Carbon and Fenton Reagent and Its Control Using Three Standardized Bacterial Inhibition TestsEduard Rott0Timo Pittmann1Stephan Wasielewski2Amélie Kugele3Ralf Minke4Institute for Sanitary Engineering, Water Quality and Solid Waste Management, University of Stuttgart, Bandtäle 2, 70569 Stuttgart, GermanyTBF + Partner AG, Herrenberger Straße 14, D-71032 Böblingen, GermanyInstitute for Sanitary Engineering, Water Quality and Solid Waste Management, University of Stuttgart, Bandtäle 2, 70569 Stuttgart, GermanyInstitute for Sanitary Engineering, Water Quality and Solid Waste Management, University of Stuttgart, Bandtäle 2, 70569 Stuttgart, GermanyInstitute for Sanitary Engineering, Water Quality and Solid Waste Management, University of Stuttgart, Bandtäle 2, 70569 Stuttgart, GermanyDischarge of toxic industrial wastewaters into biological wastewater treatment plants may result in inhibition of activated sludge bacteria (ASB). In order to find an appropriate method of detoxification, the wastewater of a pesticide-processing plant in Vietnam was treated with three different methods (FeIII, powdered activated carbon (PAC), Fenton (FeII/H2O2)) analyzing the detoxification effect with the nitrification inhibition test (NIT), respiration inhibition test (RIT) and luminescent bacteria test (LBT). The heterotrophic ASB were much more resistant to the wastewater than the autotrophic nitrificants. The NIT turned out to be more suitable than the RIT since the NIT was less time-consuming and more reliable. In addition, the marine Aliivibrio fischeri were more sensitive than the nitrificants indicating that a lack of inhibition in the very practical and time-efficient LBT correlates with a lack of nitrification inhibition. With 95%, the Fenton method showed the highest efficiency regarding the chemical oxygen demand (COD) removal. Although similar COD removal (60–65%) was found for both the FeIII and the PAC method, the inhibitory effect of the wastewater was reduced much more strongly with PAC. Both the NIT and the LBT showed that the PAC and Fenton methods led to a similar reduction in the inhibitory effect.https://www.mdpi.com/2073-4441/9/12/969bacterial inhibition testsdetoxificationEC50pesticideswastewater treatment |
| spellingShingle | Eduard Rott Timo Pittmann Stephan Wasielewski Amélie Kugele Ralf Minke Detoxification of Pesticide-Containing Wastewater with FeIII, Activated Carbon and Fenton Reagent and Its Control Using Three Standardized Bacterial Inhibition Tests Water bacterial inhibition tests detoxification EC50 pesticides wastewater treatment |
| title | Detoxification of Pesticide-Containing Wastewater with FeIII, Activated Carbon and Fenton Reagent and Its Control Using Three Standardized Bacterial Inhibition Tests |
| title_full | Detoxification of Pesticide-Containing Wastewater with FeIII, Activated Carbon and Fenton Reagent and Its Control Using Three Standardized Bacterial Inhibition Tests |
| title_fullStr | Detoxification of Pesticide-Containing Wastewater with FeIII, Activated Carbon and Fenton Reagent and Its Control Using Three Standardized Bacterial Inhibition Tests |
| title_full_unstemmed | Detoxification of Pesticide-Containing Wastewater with FeIII, Activated Carbon and Fenton Reagent and Its Control Using Three Standardized Bacterial Inhibition Tests |
| title_short | Detoxification of Pesticide-Containing Wastewater with FeIII, Activated Carbon and Fenton Reagent and Its Control Using Three Standardized Bacterial Inhibition Tests |
| title_sort | detoxification of pesticide containing wastewater with feiii activated carbon and fenton reagent and its control using three standardized bacterial inhibition tests |
| topic | bacterial inhibition tests detoxification EC50 pesticides wastewater treatment |
| url | https://www.mdpi.com/2073-4441/9/12/969 |
| work_keys_str_mv | AT eduardrott detoxificationofpesticidecontainingwastewaterwithfeiiiactivatedcarbonandfentonreagentanditscontrolusingthreestandardizedbacterialinhibitiontests AT timopittmann detoxificationofpesticidecontainingwastewaterwithfeiiiactivatedcarbonandfentonreagentanditscontrolusingthreestandardizedbacterialinhibitiontests AT stephanwasielewski detoxificationofpesticidecontainingwastewaterwithfeiiiactivatedcarbonandfentonreagentanditscontrolusingthreestandardizedbacterialinhibitiontests AT ameliekugele detoxificationofpesticidecontainingwastewaterwithfeiiiactivatedcarbonandfentonreagentanditscontrolusingthreestandardizedbacterialinhibitiontests AT ralfminke detoxificationofpesticidecontainingwastewaterwithfeiiiactivatedcarbonandfentonreagentanditscontrolusingthreestandardizedbacterialinhibitiontests |