The potential of co-digestion mixing thickened secondary sludge (TS) from extended aeration wastewater treatment plant and locally available substrates (whey, grease septage) has been studied in this work, using three steps. first step was a batch test to determine the biological methane (BMP) different mixtures co-substrates with TS. second carried out lab-scale reactors (20 L), simulating ana...

The Pollution of India’s National River Ganges has become dangerous for people near it. After observing the data, it was found that in high profile cities like Kanpur, Varanasi and Allahabad highly polluted. In this study water quality parameters were analysed these polluted areas before after launching Namami Gange project. research is shown if sewage treatment capacity increased then how poll...

the effluent quality of a sewage treatment plant using activated sludge process and finally secondary treatment depends on the flocculation efficiency and settling of the flocs. the survey of various treatment processes in water and wastewater treatment shows that temperature and ph are the important factors affecting efficiency of flocculation and settling properties. this study was performed ...

aerobic digestion was useful for mixed sludge of west ahwaz sewage treatment plant. results showed that after 12 days 38% of tvs reduced. this meets the environmental standards. after 19 days detention time in the bioreactor, cod, vss, tvs, tss, ts, were 40 ,56, 54.5 ,50.4 ,44.7 percent respectively. kd coefficient was,0.173day-1. aim of this bench scale study is determination of aerobic digest...

The aerobic granular sludge (AGS) process is an effective wastewater treatment technology for organic matter and nutrient removal that has been introduced in the market rapidly. Until now, limited information available on AGS regarding of bacterial viral pathogenic organisms present sewage. This study focussed determining relation between reactor operational conditions (plug flow feeding, turbu...

used in the trials described in Part 1 of this paper'. The sampling and analytical work was carried out by the Water Pollution Research Laboratory (WPRL) using the same methods as in the previous trial. An additional analytical method was required in these trials, however, for the determination of trace quantities of nonionics in the influent and effluent sewage streams. The WPRL employed the t...

Low efficiency of conventional aeration techniques and the excessive production and disposal of sludge are great concerns in biological wastewater treatment systems. The present study aimed to evaluate the active sludge method using batch reactors under continuous operation to determine the efficiency of aeration and sludge production through microbubble and nanobubble aeration. The results ind...