Results 181 to 190 of about 235,460 (228)

Vermitechnology for sewage sludge recycling

Journal of Hazardous Materials, 2009
The present paper is aimed at safe reuse and recycling of sewage sludge (SS) and production of good quality compost using vermicomposting. Three different earthworm species Eiseniafetida (E. fetida), Eudrilus eugeniae (E. eugeniae), Perionyx excavatus (P. excavatus) in individual and combinations were utilized to compare the suitability of worm species
Meena, Khwairakpam, Renu, Bhargava
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Trace elements in sewage sludges

Journal of the Science of Food and Agriculture, 1972
AbstractAnalyses of 42 sewage sludges from rural and industrial towns in England and Wales show very large concentrations of certain trace elements. Total contents of 5% Zn, nearly 1% Cr and Cu and 0.5 % Ni were found in certain dried sludges. Total contents of Cu, Sn and Zn and, to a lesser extent, Ag, Bi and Pb were much greater than the levels of ...
M L, Berrow, J, Webber
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Biodegradation of nonylphenol in sewage sludge

Chemosphere, 2005
We investigated the effects of various factors on the aerobic degradation of nonylphenol (NP) in sewage sludge. NP (5 mg/kg) degradation rate constants (k1) calculated were 0.148 and 0.224 day(-1) for the batch experiment and the bioreactor experiment, respectively, and half-lives (t(1/2)) were 4.7 and 3.1 days, respectively.
B V, Chang, F, Chiang, S Y, Yuan
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Vermistabilization of primary sewage sludge

Bioresource Technology, 2011
An integrated composting-vermicomposting process has been developed for utilization of primary sewage sludge (PSS). Matured vermicompost was used as bulking material and a source of active microbial culture during aerobic activated composting (AAC).
Subrata, Hait, Vinod, Tare
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Lipid profiling in sewage sludge

Water Research, 2017
High value-added reutilization of sewage sludge from wastewater treatment plants (WWTPs) is essential in sustainable development in WWTPs. However, despite the advantage of high value reutilization, this process must be based on a detailed study of organics in sludge.
Fenfen, Zhu, Xuemin, Wu, Luyao, Zhao, Xiaohui, Liu, Juanjuan, Qi, Xueying, Wang, Jiawei, Wang   +6 more
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Sewage and Sewage Sludge Treatment

2013
Sewage from properties and industries which are connected to the public sewerage system are treated by physical, chemical and biological sewage treatment processes to protect human health and the environment. In this chapter the conveyance of sewage to treatment works by combined or foul sewers is described.
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Sewage sludge disintegration by electrocoagulation

International Journal of Environmental Health Research, 2018
In this research, reduction of sludge production and improvement of sludge stabilization degree were aimed, and in this regard, the samples received from an urban wastewater treatment plant were subjected to electrocoagulation (EC) as a disintegration technique.
Yildiz S., Oran E.
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Decontamination of sewage sludges with quicklime

Waste Management & Research, 1985
Appropriate disposal of the ever increasing amounts of sludge has become a vital problem to sewage treatment plants. This paper gives both theoretical principles to thermal and chemical inactivation of sludges and experimental data. Bacteriological and parasitological examinations of the sludge were carried out prior to, and following completion of ...
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Mycoflora of activated sewage sludge

Mycopathologia, 1976
Thirty-eight species of fungi were identified in pure culture after isolation from activated sewage sludge by serial dilution. Nine species and genera were identified that had not been previously reported. In 1963, Cooke (1) published an excellent laboratory guide on the identification of fungi from polluted water, sewage, and sewage treatment systems;
U L, Diener, G, Morgan-Jones, W M, Hagler, N D, Davis   +3 more
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Technological characterization of sewage sludge

Waste Management & Research, 1985
Laboratory tests for the technological characterization of sewage sludge are catalogued and reviewed. Procedures presently being tested and evaluated by IRSA (Water Research Institute, C.N.R., Italy) are also discussed. Major attention is addressed to the evaluation of sludge dewaterability, since this operation is both expensive and ...
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