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- W2168795908 abstract "Background and purpose: Treatment and disposal Septage in developed countries is subject to strict regulations and standards, but in most developing countries, there is no decent standard. Septage if not treated properly can create many problems. This quantitative and qualitative study of urban Septage was done in East Mazandaran (Sari, Behshahr, Neka and Galogah) to provide administrative approaches. Materials and methods: Primarily related agencies and offices that discharged septage and discharge tanker operators in the region were identified. The data including the capacity of tankers, the frequency of discharges, septage type, discharge locations, etc. was collected. The sampling was performed in 14 times on different days. The samples were then transferred to the laboratory at 4 ° C. All experiments were performed according to standard methods for the examination of water and wastewater. SPSS.18 was used to analyze the data. Results: From 45 tankers operating in the study area, 30.7 percent had a business license. About 85 percent of septage transport was domestic (toilet, shower, etc.) and 15 percent was industrial wastewater. Total transferred septage of East Mazandaran cities, was 50 cubic meters. The values of TSS, BOD, and COD were lower than EPA guidelines. However, the values of TKN, NO3, NH4, and TP were slightly more than EPA guidelines. The minimum and maximum COD for septage was 2000 and 20000 mg liter, respectively. The maximum BOD5 was 7907 mg per liter. Average total coliform and fecal coliform per ml were 33790000 and 39550000, respectively. The maximum ammonia nitrogen was about 900 ppm. Maximum Kjeldahl nitrogen in East Mazandaran septage was more than 2500 mg per liter. Conclusion: Short-term treatment with alkali is easy to use and affordable which reduced MPN/100cc to less than 1000. Furthermore, combining three anaerobic baffled reactors (ABR) with activated sludge and sludge drying beds is applicable for treating septage in Eastern cities of Mazandaran. Therefore, authorities should focus on new methods for treating wastewater to reduce such environmental problems." @default.
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- W2168795908 date "2013-07-15" @default.
- W2168795908 modified "2023-09-24" @default.
- W2168795908 title "Quantitative and Qualitative Study of Urban Septage in East of Mazandaran and Administrative Approaches" @default.
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