Development of an efficient process for the treatment of residual sludge discharged from an anaerobic digester in a sewage treatment plant.

IF 9.7 1区环境科学与生态学 Q1 AGRICULTURAL ENGINEERING

Bioresource Technology Pub Date : 2011-09-01 Epub Date: 2011-05-19 DOI:10.1016/j.biortech.2011.05.030

Naoki Abe, Yue-Qin Tang, Makoto Iwamura, Hiroto Ohta, Shigeru Morimura, Kenji Kida

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引用次数: 32

Abstract

In order to reduce the discharge of residual sludge from an anaerobic digester, pre-treatment methods including low-pressure wet-oxidation, Fenton oxidation, alkali treatment, ozone oxidation, mechanical destruction and enzymatic treatment were evaluated and compared. VSS removal efficiencies of greater than 50% were achieved in cases of low-pressure wet-oxidation, Fenton oxidation and alkali treatment. Residual sludge from an anaerobic digester was pre-treated and subjected to thermophilic anaerobic digestion. As a result, the process of low-pressure wet-oxidation followed by anaerobic digestion achieved the highest VSS removal efficiency of 83%. The total efficiency of VSS removal of sewage sludge consisting of primary and surplus sludge would be approximately 92%, assuming that the VSS removal efficiency of sewage sludge is 50% in the anaerobic digester of the sewage treatment plant.

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污水处理厂厌氧消化池排放的剩余污泥的有效处理工艺的开发。

为减少厌氧消化池剩余污泥的排放，对低压湿氧化、Fenton氧化、碱处理、臭氧氧化、机械破坏和酶处理等预处理方法进行了评价和比较。在低压湿氧化、Fenton氧化和碱处理下，VSS的去除率均大于50%。对厌氧消化器产生的残余污泥进行预处理并进行嗜热厌氧消化。结果表明，低压湿氧化-厌氧消化工艺对VSS的去除率最高，达到83%。假设污水处理厂厌氧消化池中污泥的VSS去除率为50%，则VSS对由初污泥和剩余污泥组成的污水污泥的总去除率约为92%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bioresource Technology 工程技术-能源与燃料

CiteScore

20.80

自引率

19.30%

发文量

2013

审稿时长

12 days

期刊介绍： Bioresource Technology publishes original articles, review articles, case studies, and short communications covering the fundamentals, applications, and management of bioresource technology. The journal seeks to advance and disseminate knowledge across various areas related to biomass, biological waste treatment, bioenergy, biotransformations, bioresource systems analysis, and associated conversion or production technologies. Topics include: • Biofuels: liquid and gaseous biofuels production, modeling and economics • Bioprocesses and bioproducts: biocatalysis and fermentations • Biomass and feedstocks utilization: bioconversion of agro-industrial residues • Environmental protection: biological waste treatment • Thermochemical conversion of biomass: combustion, pyrolysis, gasification, catalysis.