热预处理浮渣的半连续中温厌氧共消化

IF 2 Q3 Environmental Science

Water Quality Research Journal of Canada Pub Date : 2016-05-26 DOI:10.2166/WQRJC.2016.024

B. Young, K. Kennedy, R. Delatolla, R. Sherif

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引用次数: 1

摘要

本研究的目的是研究中温、厌氧、浮渣与浓缩废物活性污泥(TWAS)和初级污泥(PS)的共消化。对反应器废物的观察表明，较高的预处理温度有助于浮渣的整合，并似乎限制了与消化脂肪、油和油脂有关的混凝和分离效果。与不添加浮渣的PS和TWAS共消化相比，在70°C下对浮渣进行预处理的0.40 kg VS/m3·d浮渣负载反应器的沼气产量提高最大。根据反应器废物的细胞活力分析，含浮渣反应器显示每立方米活细胞多产生48%和39%的沼气;表明添加浮渣增加了嵌入在废物中的微生物种群的活性或导致废物中的微生物向更活跃的群落转移。

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Semi-continuous mesophilic anaerobic co-digestion of thermally pretreated scum

The objective of this study is to investigate the mesophilic, anaerobic, co-digestion of scum with thickened waste activated sludge (TWAS) and primary sludge (PS). Observations of the reactor waste show that higher pretreatment temperatures assist in scum integration and appear to limit coagulation and separation effects associated with digesting fats, oils and greases. The 0.40 kg VS/m3 · d scum loaded reactor with scum pretreated at 70 °C achieved the greatest improvement in biogas production over PS and TWAS co-digestion without scum addition. Based on cell viability analysis of the reactor waste, scum-containing reactors were shown to produce 48 and 39% more biogas per m3 of live cells; signifying that scum addition increased the activity of the microbial population embedded in the waste or caused a microbial shift in the waste towards more active communities.

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来源期刊

Water Quality Research Journal of Canada WATER RESOURCES-

CiteScore

1.70

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Water Quality Research Journal publishes peer-reviewed, scholarly articles on the following general subject areas: Impact of current and emerging contaminants on aquatic ecosystems Aquatic ecology (ecohydrology and ecohydraulics, invasive species, biodiversity, and aquatic species at risk) Conservation and protection of aquatic environments Responsible resource development and water quality (mining, forestry, hydropower, oil and gas) Drinking water, wastewater and stormwater treatment technologies and strategies Impacts and solutions of diffuse pollution (urban and agricultural run-off) on water quality Industrial water quality Used water: Reuse and resource recovery Groundwater quality (management, remediation, fracking, legacy contaminants) Assessment of surface and subsurface water quality Regulations, economics, strategies and policies related to water quality Social science issues in relation to water quality Water quality in remote areas Water quality in cold climates The Water Quality Research Journal is a quarterly publication. It is a forum for original research dealing with the aquatic environment, and should report new and significant findings that advance the understanding of the field. Critical review articles are especially encouraged.