Performance Evaluation of Wastewater Treatment Plant Based on UASB + Facultative pond Technology- A Case Study of Karnal city, Haryana (India)
Keywords:
Wastewater, Performance Evaluation, STP, UASB, facultative pond, pH, BOD, COD, TSS.Abstract
Up flow anaerobic sludge blanket (UASB) process was one of the most widely used technology for
sewage treatment in developing countries particularly in India. The reason for its wide publicity and implementation is
its zero energy requirements and production of biogas as a valuable energy ‘resource’. Despite their popularity, past one
decade has witnessed decline in the UASB implementation. There has been criticism from various sections on the
performance of UASB Reactors. The main focus of present study was to assess performance of these sewage treatment
plants based on UASB + facultative pond technology. The performance of 40 MLD STPs at Karnal city was evaluated.
Wastewater samples were analysed for pH, BOD, COD, TSS at inlet or raw sewage, at outlet of UASB reactor and outlet
of facultative ponds unit and from which it is ready for final discharge. The results indicated consistently good
performance. The treated effluents from all the three plants meet the discharge standards with reference to compulsory
parameters pH, BOD, COD and TSS. Treated effluent is finally agriculture purposes and it meets guideline for reuse.
Sludge generated is sold to farmers, which are used as fertilizers.
