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响应面法在利用驯化混合培养物去除城市污水处理厂化学需氧量和氨氮中的应用

Application of response surface methodology for COD and ammonia removal from municipal wastewater treatment plant using acclimatized mixed culture.

作者信息

Ya'acob Amirah, Zainol Norazwina, Aziz Nor Hazwani

机构信息

College of Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Pahang, Malaysia.

Earth Resources and Sustainability Centre (ERAS), Universiti Malaysia Pahang, 26300 Gambang, Kuantan, Pahang, Malaysia.

出版信息

Heliyon. 2022 Jun 8;8(6):e09685. doi: 10.1016/j.heliyon.2022.e09685. eCollection 2022 Jun.

DOI:10.1016/j.heliyon.2022.e09685
PMID:35721676
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9204743/
Abstract

This study aimed to optimize conditions influencing the removal of chemical oxygen demand (COD) and ammonia-N in municipal wastewater by using acclimatized mixed culture (AMC). Two-level factorial analysis was used to investigate the factors affecting the degradation of COD and ammonia-N (%); ratio of synthetic wastewater (SW) to acclimatized mixed culture (AMC) (1:1 and 3:1), presence and absence of support media (Yes and No), agitation (0 rpm and 100 rpm) and hydraulic retention time (HRT) (2 and 5 days). A central composite design (CCD) under response surface methodology (RSM) determined the optimum agitation (0 rpm and 100 rpm) and retention time (2 and 5 days). The best conditions were at 3:1 of SW: AMC ratio, 100 rpm agitation, without support media, and 5 days retention time. COD and ammonia-N removal achieved until 57.23% and 43.20%, respectively. Optimization study showed the optimum conditions for COD and ammonia-N removal were obtained at 150 rpm agitation speed and 5 days of retention time, at 70.41% and 64.29% respectively. This study discovers the conditions that affect the COD and ammonia-N removal in the municipal wastewater using acclimatized mixed culture.

摘要

本研究旨在优化利用驯化混合培养物（AMC）去除城市污水中化学需氧量（COD）和氨氮的条件。采用二水平析因分析研究影响COD和氨氮降解率（%）的因素；合成废水（SW）与驯化混合培养物（AMC）的比例（1:1和3:1）、有无载体介质（有和无）、搅拌（0转/分钟和100转/分钟）以及水力停留时间（HRT）（2天和5天）。响应面法（RSM）下的中心复合设计（CCD）确定了最佳搅拌速度（0转/分钟和100转/分钟）和停留时间（2天和5天）。最佳条件为SW:AMC比例为3:1、搅拌速度100转/分钟、无载体介质以及停留时间5天。COD和氨氮去除率分别达到57.23%和43.20%。优化研究表明，在搅拌速度150转/分钟和停留时间5天时，COD和氨氮去除率分别达到70.41%和64.29%，获得了去除COD和氨氮的最佳条件。本研究发现了利用驯化混合培养物影响城市污水中COD和氨氮去除的条件。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/33b978e98961/gr12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/7367fb6ef67c/ga1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/df5939bd3b97/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/acc2ea4146ee/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/da2018a4e856/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/21ef263aabfa/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/4c8102a15a28/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/6ac6328667f1/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/808e33b880c6/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/a2c3ff29deb4/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/fee4c196c650/gr9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/050af45fbbfb/gr10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/33b978e98961/gr12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/7367fb6ef67c/ga1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/df5939bd3b97/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/acc2ea4146ee/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/da2018a4e856/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/21ef263aabfa/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/4c8102a15a28/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/6ac6328667f1/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/808e33b880c6/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/a2c3ff29deb4/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/fee4c196c650/gr9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/050af45fbbfb/gr10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d79/9204743/33b978e98961/gr12.jpg

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