脱氨污泥在城市污水处理厂主流应用的运行窗口

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

Water and Environment Journal Pub Date : 2023-09-01 DOI:10.1111/wej.12898

D. Cheenakula, Svea Paulsen, Fabian Ott, M. Grömping

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引用次数: 0

摘要

本工作旨在研究德国卡斯特市城市污水处理厂（MWWTP）支流脱氨污泥的主流可行性。为此，根据操作因素温度（15–30°C）、pH值（6.0–8.0）和化学需氧量（COD）/N比（≤1.5–6.0），对侧流中可用的脱氨污泥进行了脱氮研究。最高和最低脱氮率分别为0.13和0.045 分别在30°C和15°C下达到kg/（m3/d）。部分硝化/厌氧氨氧化（PN/A）SBRs中pH和COD/N比率的不同条件显著影响代谢过程和相关的氮去除率。从目前的工作中获得的科学见解意味着WWTP主流PN/A的可能性。目前的研究为即将在卡斯特污水处理厂和全球污水处理厂进行全规模主流PN/a之前进行的半技术试验的运行窗口奠定了坚实的基础。

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Operational window of a deammonifying sludge for mainstream application in a municipal wastewater treatment plant

The present work aimed to study the mainstream feasibility of the deammonifying sludge of side stream of municipal wastewater treatment plant (MWWTP) in Kaster, Germany. For this purpose, the deammonifying sludge available at the side stream was investigated for nitrogen (N) removal with respect to the operational factors temperature (15–30°C), pH value (6.0–8.0) and chemical oxygen demand (COD)/N ratio (≤1.5–6.0). The highest and lowest N‐removal rates of 0.13 and 0.045 kg/(m3 d) are achieved at 30 and 15°C, respectively. Different conditions of pH and COD/N ratios in the SBRs of Partial nitritation/anammox (PN/A) significantly influenced both the metabolic processes and associated N‐removal rates. The scientific insights gained from the current work signifies the possibility of mainstream PN/A at WWTPs. The current study forms a solid basis of operational window for the upcoming semi‐technical trails to be conducted prior to the full‐scale mainstream PN/A at WWTP Kaster and WWTPs globally.

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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