𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Effects of polyacrylamide on microbial density levels and biodegradability in waste-activated sludge

✍ Scribed by Ching-Ping Chu; Duu-Jong Lee; Bea-Ven Chang; Chian-Sen Liao

Publisher
Wiley (John Wiley & Sons)
Year
2001
Tongue
English
Weight
174 KB
Volume
76
Category
Article
ISSN
0268-2575

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

This study addressed the possible role of polyelectrolyte flocculation on microbial density levels in a waste‐activated sludge. Such an effect is commonly ignored. Applying polyelectrolyte reduced the density level of coliform bacteria in the flocculated sludge. Polyelectrolyte also reduced the 5‐day biochemical oxygen demand of sludge, possibly retarding the subsequent biodegradation processes.

Β© 2001 Society of Chemical Industry

πŸ“œ SIMILAR VOLUMES

Effects of current density and electrode
Effects of current density and electrode material on the dewaterability of the thickened activated sludge by electro-flotation
✍ Young Gyun Choi; Seong Hong Kim; Hee Jun Kim; Yun Jung Kim; Tai Hak Chung πŸ“‚ Article πŸ“… 2009 πŸ› Wiley (John Wiley & Sons) 🌐 English βš– 223 KB

## Abstract **BACKGROUND:** Electro‐flotation (EF) could improve thickening and subsequent dewatering characteristics of activated sludge although the settling characteristics of the sludge were very poor. The objectives of this study were to evaluate the performance of EF in the thickening and dew

Two types of organophosphate pesticides
Two types of organophosphate pesticides and their combined effects on heterotrophic growth rates in activated sludge process
✍ Tzu-Yi Pai; Shun-Cheng Wang; Ching-Yuan Lin; Wan-Chun Liao; Hsiao-Hsing Chu; Tun πŸ“‚ Article πŸ“… 2009 πŸ› Wiley (John Wiley & Sons) 🌐 English βš– 134 KB

## Abstract **BACKGROUND:** Pesticides are sometimes non‐biodegradable and, moreover, toxic to microorganisms. If pesticides exceed the tolerance of microorganisms, failure of the activated sludge process (ASP) occurs. Therefore the effects of two types of organophosphate pesticides on heterotrophi