Journal ArticleDOI
Treatability study of 3,3',4',5-tetrachlorosalicylanilide (TCS) combined with 2,4,6-trichlorophenol (TCP) to reduce excess sludge production in a sequence batch reactor.
Xiaochi Feng,Wanqian Guo,Chuan Chen,Shan-Shan Yang,Wenbiao Jin,Nanqi Ren,Heshan Zheng,Juanshan Du,Bo Liu +8 more
TLDR
The present study investigated the synergistic effects of a novel combined uncoupler of TCS and TCP on excess activated sludge reduction during a 60-day operation using a sequence batch reactor (SBR).About:
This article is published in Bioresource Technology.The article was published on 2013-09-01. It has received 18 citations till now. The article focuses on the topics: Activated sludge.read more
Citations
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Journal ArticleDOI
Possible causes of excess sludge reduction adding metabolic uncoupler, 3,3′,4′,5-tetrachlorosalicylanilide (TCS), in sequence batch reactors
TL;DR: Results showed the remarkable reduction of electronic transport system activity and specific cellular ATP (SATP) in TCS reactor, which proved the occurrence of metabolic uncoupling.
Journal ArticleDOI
Effects of metabolic uncouplers on excess sludge reduction and microbial products of activated sludge.
TL;DR: Among three uncouplers, oCP could be an alternative uncoupler for sludge reduction in activated sludge process and had significant inhibition effect on ammonia removal, especially for oNP.
Journal ArticleDOI
Formation of microbial products by activated sludge in the presence of a metabolic uncoupler o-chlorophenol in long-term operated sequencing batch reactors.
TL;DR: The oCP addition slightly reduced the pollutant removal efficiency and decreased the formation of soluble microbial products in the SBRs, but stimulated the productions of extracellular polymeric substances and polyhydroxyalkanoate in activated sludge.
Journal ArticleDOI
Evaluation of sludge reduction of three metabolic uncouplers in laboratory-scale anaerobic–anoxic–oxic process
TL;DR: Besides metabolic uncoupling and maintenance metabolism, which exist in the TCS- and DCP-added systems, lysis-cryptic growth also exists in the THPS-added system, and the differences among three metabolic unc couplers were little.
Journal ArticleDOI
Toxic Effects of Xenobiotic Compounds on the Microbial Community of Activated Sludge
Ahmad Hussaini Jagaba,Shamsul Rahman Mohamed Kutty,Mohamed Hasnain Isa,A.A.S. Ghaleb,Ibrahim Mohammed Lawal,A.K. Usman,Abdullahi Haruna Birniwa,Azmatullah Noor,S. Abubakar,Ibrahim Yakubu Umaru,Anwar Ameen Hezam Saeed,Haruna Kolawole Afolabi,Usman Bala Soja +12 more
TL;DR: In this article , the effects of metabolic uncouplers, heavy metals, carbon nanotubes, pharmaceuticals and personal care products, nanoparticles, and phenolic compounds stress on microbial biomass in activated sludge systems.
References
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Book
Standard methods for the examination of water and wastewater
TL;DR: The most widely read reference in the water industry, Water Industry Reference as discussed by the authors, is a comprehensive reference tool for water analysis methods that covers all aspects of USEPA-approved water analysis.
Journal ArticleDOI
Characterization of extracellular polymeric substances of aerobic and anaerobic sludge using three-dimensional excitation and emission matrix fluorescence spectroscopy.
Guo-Ping Sheng,Han-Qing Yu +1 more
TL;DR: Three-dimensional excitation-emission matrix (EEM) fluorescence spectroscopy was applied to characterize the extracellular polymeric substances (EPS) extracted from aerobic and anaerobic sludge in wastewater treatment.
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The role of extracellular polymeric substances in the toxicity response of activated sludge bacteria to chemical toxins.
TL;DR: The EPS matrix functions as a protective barrier for the bacteria inside activated sludge flocs to chemicals that it has the potential to interact with, such as hydrophobic (octanol) and positively charged (cadmium) compounds, but that the toxicity response for soluble, hydrophilic toxins (NEM and cyanide) is not influenced by the presence of the polymer matrix.
Journal ArticleDOI
Soluble microbial products and their implications in mixed culture biotechnology
TL;DR: This review gives the up-to-date status on several essential SMP issues: mechanisms of SMP formation, differentiation between utilization-associated products (UAP) and biomass- associated products (BAP), biodegradability of the SMP components, how formation of S MP by autotrophs controls effluent quality and supports a substantial population of heterotrophS, mathematical modeling that includes SMP, and improving effluentquality by controlling SMP.
Journal ArticleDOI
Enhanced hydrogen production from waste activated sludge by cascade utilization of organic matter in microbial electrolysis cells
TL;DR: MECs showed high hydrogen yield from WAS, fewer H2 sinks, and insensitivity to temperature, and Optimizing MEC configurations and operation conditions and improving the pretreatment processes of WAS are necessary before practical application can take place on a large scale.