Journal ArticleDOI
Optimization of operating parameters for sludge process reduction under alternating aerobic/oxygen-limited conditions by response surface methodology
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TLDR
Investigation of the optimal conditions for excess sludge reduction under an alternating aerobic/oxygen-limited environment using response surface methodology showed an excellent correlation between the predicted and measured values, which provides confidence in the model.About:
This article is published in Bioresource Technology.The article was published on 2011-11-01. It has received 55 citations till now. The article focuses on the topics: Mixed liquor suspended solids & Response surface methodology.read more
Citations
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Journal ArticleDOI
Minimization of excess sludge production by in-situ activated sludge treatment processes--a comprehensive review.
TL;DR: This review presents the current and emerging technologies for excess sludge minimization within the process of sewage treatment and guides researchers who are seeking feasible and promising technologies (or processes) to tackle the severe WAS problem.
Journal ArticleDOI
A comprehensive insight into the combined effects of Fenton's reagent and skeleton builders on sludge deep dewatering performance.
TL;DR: Conditioning sewage sludge with Fenton's reagent and skeleton builders has been proved to be an effective mean to achieve deep dewatering and a comprehensive insight into the mechanism involved is given.
Journal ArticleDOI
Sludge cycling between aerobic, anoxic and anaerobic regimes to reduce sludge production during wastewater treatment: Performance, mechanisms, and implications
Galilee U. Semblante,Faisal I. Hai,Huu Hao Ngo,Wenshan Guo,Sheng-Jie You,William E. Price,Long D. Nghiem +6 more
TL;DR: Though discrepancies across various studies are recognisable, it is apparent that sludge retention time, oxygen-reduction potential of the anaerobic tank, temperature, sludge return ratio and loading mode are relevant to sludge minimisation by sludge cycling approaches.
Journal ArticleDOI
Minimization of sludge production by a side-stream reactor under anoxic conditions in a pilot plant.
TL;DR: Simply applying an anoxic side-stream reactor in the sludge return line of a conventional activated sludge system would decrease the final volume of waste sludge while maintaining the slud retention time and would, in fact, decrease the economic costs in terms of sludge handling.
Journal ArticleDOI
Simultaneous waste activated sludge disintegration and biological hydrogen production using an ozone/ultrasound pretreatment.
TL;DR: The combined ozone/ultrasound pretreatment provides an ideal and environmental friendly solution to the problem of sludge disposal.
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
Optimization of α-amylase production by Bacillus sp. using response surface methodology
TL;DR: The combined effects of macronutrients of media on α-amylase production by Bacillus sp.
Journal ArticleDOI
A review of secondary sludge reduction technologies for the pulp and paper industry.
Talat Mahmood,Allan Elliott +1 more
TL;DR: A critical evaluation of all candidate reduction technologies indicates that sludge reduction through treatment process changes appears more appealing than post-treatment alternatives, and it is unlikely to be economically feasible at this time.
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Aerobic granular sludge—a case report
TL;DR: Aerobic granular sludge was observed in a Sequencing Batch Reactor (SBR) in which a synthetic urban wastewater containing sodium acetate as an organic substrate was fed, and dissolved oxygen (DO) was controlled at low concentration (0.7-1.0 mg/l) as mentioned in this paper.
Journal ArticleDOI
Strategy for minimization of excess sludge production from the activated sludge process.
Yu Liu,Joo-Hwa Tay +1 more
TL;DR: This paper reviews strategies developed for minimization of excess sludge production, such as oxic-settling-anaerobic process, high dissolved oxygen process, uncoupler-containing activated sludge process, ozonation-combined activated slud process, control of sludge retention time and biodegradation of slud in membrane-assisted reactor.