食品加工厌氧污泥的沉降

IF 2 Q3 Environmental Science

Water Quality Research Journal of Canada Pub Date : 2014-11-01 DOI:10.2166/wqrjc.2014.003

A. Rodriguez-Prado, L. Ripley, J. Garcia-Orozco

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引用次数: 0

摘要

本文介绍了用2升、4升和8升气瓶对食品加工废水中厌氧污泥进行沉降试验的初步结果。将文献中的沉降模型应用于沉降数据。2升和4升气缸的具体沉降速度没有差异(t检验;P = 0.896)，因此将数据合并。8 L圆筒的比沉降速度平均值(21.03 × 10−4±6.27 × 10−4 m/s)比较小圆筒(7.29 × 10−4±2.32 × 10−4 m/s)高出近3倍(P = 0.027)。在使用8l气缸时遇到了测量难题。考虑到使用1升气缸进行的试验导致污泥压缩，结果表明，使用2升和4升气缸进行实验室规模的污泥沉降测量是可行的。

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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Settling of food-processing anaerobic sludge

This paper presents preliminary results of settling tests on anaerobic sludge from food-processing wastewater treatment, using 2, 4, and 8 L cylinders. A sedimentation model from the literature was applied to the sedimentation data. The specific settling velocities for the 2 and 4 L cylinders did not differ ( t -test; P = 0.896), therefore the data were pooled. The specific settling velocity mean was nearly three times higher ( P = 0.027) for the 8 L cylinder (21.03 × 10 −4 ± 6.27 × 10 −4 m/s) than the pooled smaller cylinder size (7.29 × 10 −4 ± 2.32 × 10 −4 m/s). Measurement challenges were encountered while working with the 8 L cylinder. Given that tests using a 1 L cylinder resulted in sludge compression, the results indicate that use of both 2 and 4 L cylinders is feasible for lab-scale measurement of sludge settling.

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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.