有机负荷率对实验室规模序批式反应器处理乳制品废水性能的影响

IF 1.3 Q3 ENGINEERING, MULTIDISCIPLINARY

International Journal of Engineering and Technology Innovation Pub Date : 2023-04-01 DOI:10.46604/ijeti.2023.10763

Khac-Uan Do, Thuy-Ngan Thi Bui, Hung-Thuan Tran, Xuan-Quang Chu

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引用次数: 0

摘要

本研究旨在研究序批式反应器（SBR）系统中有机负荷率（OLRs）、营养素添加率和污泥停留时间（SRT）对处理乳制品废水的影响。该研究通过在3个不同OLR（分别为1.8、1.2和0.9 kg/m3）的3个阶段进行的实验进行了验证。添加尿素（（NH2）2CO）以使乳制品废水的COD∶N∶P比例达到（100∶5∶1）。SRT从50天调整为18天的适当值。结果表明，随着OLRs的降低，COD、TN和TP的去除率都有所提高。加入（NH2）2CO后，SBR池中的污泥浓度稳定在1100 mg/L。此外，在合适的SRT（即18天）下运行的SBR有助于稳定生物量，从而提高COD、TN和TP的去除率。研究结果有助于SBR法处理乳品废水的设计。

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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Effect of Organic Loading Rates on Performance of Treating Dairy Wastewater in a Lab-Scale Sequencing Batch Reactor

This study aims to investigate, the effect of organic loading rates (OLRs), nutrient ratio addition, and sludge retention time (SRT) on treating dairy wastewater in a sequencing batch reactor (SBR) system. This investigation is verified by experiments conducted in 3 phases at 3 different OLRs (1.8, 1.2, and 0.9 kg/m3d, respectively). Urea ((NH2)2CO) is added to make a suitable (COD:N:P) ratio of (100:5:1) in dairy wastewater. The SRT is adjusted from 50 days to an appropriate value of 18 days. The obtained results show that the COD, TN, and TP removal efficiencies are increased with decreasing OLRs. Sludge concentration in the SBR tank is stable at 1100 mg/L after adding (NH2)2CO. In addition, the SBR operated at a suitable SRT (i.e. 18 days) helps the biomass stably, resulting in enhancement of COD, TN, and TP removal. The results are helpful to the design of SBR for treating dairy wastewater.

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来源期刊

International Journal of Engineering and Technology Innovation ENGINEERING, MULTIDISCIPLINARY-

CiteScore

2.80

自引率

0.00%

发文量

审稿时长

12 weeks

期刊介绍： The IJETI journal focus on the field of engineering and technology Innovation. And it publishes original papers including but not limited to the following fields: Automation Engineering Civil Engineering Control Engineering Electric Engineering Electronic Engineering Green Technology Information Engineering Mechanical Engineering Material Engineering Mechatronics and Robotics Engineering Nanotechnology Optic Engineering Sport Science and Technology Innovation Management Other Engineering and Technology Related Topics.