Seasonal temperature‐related variation of humus tank settlement efficiency

IF 1.7 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Water and Environment Journal Pub Date : 2023-03-10 DOI:10.1111/wej.12860

P. Pearce, Go-Soo Yang

引用次数: 0

Abstract

This study uses several years of effluent quality data from 43 sites where online monitoring has been operational for many years resulting in the accumulation of high‐resolution data sets. The data show a highly repeatable, seasonal dependence of effluent turbidity on temperature. This has been modelled with simple techniques producing a generic model that is neither data hungry nor requires site calibration. Viscosity‐based mechanisms are proposed and discussed. These mechanisms differ from conventional assumptions of suspended solids peaks being solely flow related and or ascribed to ‘spring sloughing’. The proposal is that the organic loading of the filter and the physical temperature effects on settlement velocity are both as influential as hydraulic loading in determining effluent suspended solids concentration. Application of the models enables improved design for new/upgraded units and more accurate capacity assessment of trickling filters and humus tanks enabling improved operational risk management of compliance failure.

查看原文本刊更多论文

腐殖质池沉降效率的季节性温度变化

本研究使用了43个站点多年来的污水质量数据，这些站点的在线监测已经运行多年，从而积累了高分辨率数据集。数据显示出水浊度对温度具有高度可重复的季节性依赖性。这已经用简单的技术建模，产生一个既不需要数据也不需要现场校准的通用模型。提出并讨论了基于粘度的机理。这些机制不同于传统的假设，即悬浮固体峰值仅仅与流动有关，或归因于“弹簧脱落”。建议过滤器的有机负荷和物理温度对沉降速度的影响与水力负荷对出水悬浮物浓度的影响一样大。应用这些模型可以改进新/升级装置的设计，更准确地评估滴漏过滤器和腐殖质罐的容量，从而改善合规失败的操作风险管理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Water and Environment Journal 环境科学-湖沼学

CiteScore

4.80

自引率

0.00%

发文量

审稿时长

18-36 weeks

期刊介绍： Water and Environment Journal is an internationally recognised peer reviewed Journal for the dissemination of innovations and solutions focussed on enhancing water management best practice. Water and Environment Journal is available to over 12,000 institutions with a further 7,000 copies physically distributed to the Chartered Institution of Water and Environmental Management (CIWEM) membership, comprised of environment sector professionals based across the value chain (utilities, consultancy, technology suppliers, regulators, government and NGOs). As such, the journal provides a conduit between academics and practitioners. We therefore particularly encourage contributions focussed at the interface between academia and industry, which deliver industrially impactful applied research underpinned by scientific evidence. We are keen to attract papers on a broad range of subjects including: -Water and wastewater treatment for agricultural, municipal and industrial applications -Sludge treatment including processing, storage and management -Water recycling -Urban and stormwater management -Integrated water management strategies -Water infrastructure and distribution -Climate change mitigation including management of impacts on agriculture, urban areas and infrastructure