“双碳”目标下海南地区污水处理厂更新改造对策分析及工程实例

王碧云; 孙艾林; 许雪煌

doi:10.13205/j.hjgc.202411009

“双碳”目标下海南地区污水处理厂更新改造对策分析及工程实例

doi: 10.13205/j.hjgc.202411009

1. 海南省水务集团有限公司, 海口 571126;
2. 海南鹏源水环境治理科技有限公司, 海口 571126

详细信息

作者简介:
王碧云(1978-),女,高级工程师,主要研究方向为水质分析、水环境治理及水处理工程等。358340475@qq.com

通讯作者:
孙艾林(1981-),男,工程师,主要研究方向为水环境治理技术及给水排水工程。8336719@qq.com

计量
- 文章访问数: 24
- HTML全文浏览量: 4
- PDF下载量: 0
- 被引次数: 0
出版历程
- 收稿日期: 2024-07-10
- 网络出版日期: 2025-01-16

STRATEGIES AND PROJECT CASE OF WASTEWATER TREATMENT PLANTS RENEWAL AND REFORMATION FOR THE DUAL-CARBON GOAL

1. Hainan Provincial Water Group Co., Ltd., Haikou 571126, China;
2. Hainan Pengyuan Water Environmental Treatment Technology Co., Ltd., Haikou 571126, China

摘要

摘要: 东方市污水处理厂采用奥贝尔氧化沟工艺,设计能力为25000 m³/d,现有工艺存在设备故障率高、能耗高、药剂投加量大的问题。在《海南省碳达峰实施方案》《海南省减污降碳协同增效实施方案》文件指导下,将现有工艺更新改造为AAO工艺,采用空气悬浮鼓风机替换了转碟曝气机,将表面曝气方式改为底部曝气方式。在未新增生化处理构筑物的前提下,将该厂的污水处理负荷率提高了28%,改造后该厂的处理能力为30250 m³/d,有效节省了污水处理厂扩容的投资;通过更新改造,将该厂的平均能耗下降了24%,改造后的平均能耗为0.292 kW·h/m³,年节约电能为1026836 kW·h,电源消耗方面的降碳量为813356.8 kg CO₂,改造后该厂的碳排放强度为0.4634 kg CO₂-eq/m³,年碳排放量为0.5117万t CO₂-eq,碳排放强度降低了18.5%;更新改造降低了该厂的平均药耗,PAC的平均消耗量为158.30 g/m³,降低了12.4%;乙酸钠的平均消耗量为13.99 g/m³,降低了9.0%。污水处理厂的减污降碳协同增效以智慧控制系统作支撑,可使得污水处理厂运行更节能、更低碳、更高效。
- 碳达峰 /
- 减污降碳 /
- 更新改造 /
- 奥贝尔氧化沟 /
- AAO工艺
Abstract: The Dongfang Wastewater Treatment Plant has adopted the Orbal oxidation ditch process, with a design capacity of 25000 m³/d. However, the existing process has encountered issues such as high equipment failure rates, excessive energy consumption, and large chemical usage. In response to the "Implementation Plan of Carbon Peak in Hainan Province" and "Implementation Plan of Collaborative Efficiency of Carbon Reduction in Hainan Province", the plant underwent an renewal and transformation to implement a new AAO process. This involved replacing the rotating disc aerator with an air suspension blower and changing the surface aeration mode to bottom aeration mode. Without introducing new biochemical treatment structures, these modifications increased the sewage treatment load rate by 28%, resulting in a treatment capacity of 30250 m³/d after transformation. This effectively saved investment for expanding the capacity of the sewage treatment plant. As a result of these renovations, average energy consumption of the plant was reduced by 24%, with a post-transformation average energy consumption of 0.292 kW·h/m³,leading to an annual energy saving of 1026836 kW·h. After the transformation, the carbon emission intensity of the plant amounted to 0.4634 kg CO₂-eq/m³, the annual carbon emission reached 51,17 t CO₂-eq, and a reduction of 18.5% in carbon intensity was achieved. Furthermore, there was a reduction in average chemical drug consumption at the plant. Average PAC consumption decreased by 12.4% to an average of 158.30 g/m³, while sodium acetate consumption decreased by 9%, to an average of 13.99 g/m³. To achieve collaborative efficiency in pollution reduction and carbon reduction at sewage treatment plants, it is essential to integrate intelligent control systems that enable more efficient perception and powerful logic calculation.
- carb-on peaking /
- reduction of pollution and carbon emissions /
- renewal and reformation /
- Orbal oxidation ditch /
- anaerobic-anoxic-oxic process

HTML全文

参考文献(36)

[1]	刘春霞,孙鹏飞,吴晓辉,等."双碳"背景下污水处理行业降碳减排路径探析[J].环境工程,2023,41(增刊1): 135-127.
[2]	张小寒,孟庆杰,徐雪,等."双碳"背景下污水处理厂提标改造所面临的困境及出路[J].给水排水,2023,49(增刊1): 194-200.
[3]	王洪臣.我国城镇污水处理行业碳减排路径及潜力[J].给水排水,2017,53(3): 1-3.
[4]	宋新新,林甲,刘杰,等.碳中和视野下面向未来污水处理关键技术研发与工程实践:"面向未来污水处理厂关键技术研发与工程示范"专栏序言[J].环境科学学报,2022:1-6.
[5]	陆家缘.中国污水处理行业碳足迹与减排潜力分析[D].合肥:中国科学技术大学,2019.
[6]	Gu Y F,LI Y,LI X Y,et al. The feasibility and challenges of energy self-sufficient wastewater treatment plants[J]. Applied Energy, 2017,204:1463-1475.
[7]	IPCC.2019 refinement to the 2006 IPCC guidelines for national greenhouse gas inventory[R].IPCC,2019.
[8]	中国环境科学研究院编制组.城镇污水处理厂污染物去除协同控制温室气体核算技术指南[R].北京:生态环境部,2018.
[9]	中国环境保护产业协会. 污水处理厂低碳运行评价技术规范:T/CAEPI49—2022[S].2022.
[10]	中国城镇供水排水协会.城镇水务系统碳核算与减排路径技术指南[M].北京:中国建筑工业出版社,2022.
[11]	郝晓地,李天宇,吴远远,等.A²/O工艺用于污水处理厂升级改造的适宜性探讨[J].中国给水排水,2017,33(21):18-24.
[12]	燕书权,王睿宁,宋蕾.基于LCA 的污水处理厂提标改造环境影响负荷研究[J].环境工程,2016,34(12): 167-171.
[13]	LING CHIN J, HEI DRICH O, ROSKILLY A P. Life cycle assessment(LCA)-from analysing methodology development to introducing an LCA framework for marine photovoltaic systems[J].Renewable and Sustainable Energy Re-views,2016,59: 352-378.
[14]	LOUBET P, ROUX P, GU RIN-SCHNEIDER L, et al. Life cycle assessment of forecasting scenarios for urban water management: a first implementation of the WaLA model on Paris suburban area[J].Water Research, 2016,90:128-140.
[15]	曹业始,郑兴灿,刘智晓,等.中国城市污水处理的瓶颈、缘由及可能的解决方案[J].北京工业大学学报, 2021,47(11):1292-1302.
[16]	LUO L, DZAKPASU M, YANG B C, et al. A novel index of total oxygen demand for the comprehensive evaluation of energy consumption for urban wastewater treatment[J]. Applied Energy, 2019,236:253-261.
[17]	吴宇行,王晓东,陈宁,等.典型城镇污水处理厂碳源智能投加控制生产性试验[J].环境工程,2022,40(6):212-218 ,271.
[18]	韩广.基于神经网络的污水处理过程实时优化控制研究[D].北京:北京工业大学,2014.
[19]	韩红桂,张璐,卢薇,等.城市污水处理过程动态多目标智能优化控制研究[J].自动化学报,2021,47(3): 620-629.
[20]	杨红.污水生化处理的智能建模与优化控制策略应用研究[D].广州:华南理工大学,2010.
[21]	邱勇,李冰,刘垚,等.污水处理厂化学除磷自动控制系统优化研究[J].给水排水,2016,52(7): 126-129.
[22]	谢琤琤,刘刚.城市污水处理厂碳中和路径解析[J].环境工程,2023,41(9):181-186.
[23]	包遵胜,熊晓励,刘纪成,等.某污水深度处理厂人工精细化调控碳源投加量的探究[J].环境工程,2023,41(4): 137-142.
[24]	邱德志,陈纯,郭丽,等.基于排放因子法的中国主要城市群城镇污水厂温室气体排放特征[ J]. 环境工程,2022,40(6):116-122.
[25]	鲍志远. 典型城市污水处理工艺温室气体排放特征及减排策略研究[D]. 北京:北京林业大学,2019.
[26]	谢淘,汪诚文. 污水处理厂温室气体排放评估[J]. 清华大学学报 (自然科学版), 2012, 52(4): 473-477.
[27]	刘阳,施周,文宇鸿,等.城镇污水系统碳核算方法研究及典型工艺减碳路径分析[J].给水排水,2024,50(1):37-45.
[28]	张翔宇,范业弘,朱晗彬,等.城镇中小规模污水处理厂碳排放分析及碳削减对策[J].环境科学, 2024,32(1):1-14.
[29]	SUN S C, CHENG X, SUN D Z. Emission of N₂O from a full-scale sequencing batch reactor wastewater treatment plant: characteristics and 14 influencing factors[J]. International Biodeterioration & Biodegradation,2013,85(7):545-549.
[30]	GRUBER W, VON K L, VOGT L, et al. Estimation of countrywide N2O emissions from wastewater treatment in Switzerland using long-term monitoring data[J/OL]. Water Research,2021,13,doi: 10.1016/j.wroa.2021.100122.
[31]	ZHANG X H, WEI Y, PAN H Y, et al. The comparison of performances of a sewage treatment system before and after implementing the cleanerproduction measure[J]. Journal of Cleaner Production,2015,91:216-228.
[32]	马九利,王伟,黄继会,等.进水泵房恒液位恒流量自控系统改造效能评估[J].中国给水排水,2023,39(2):109-112.
[33]	郭恰.上海污水处理 AAO 工艺碳排放情况及影响因素分析[J].净水技术,2020,39(10):137-139 ,148.
[34]	SEIXAS F L, GIMENES M L, FERNANDES N R C. Treatment of vinasse by adsorption on carbon from sugar cane bagasse[J]. Quimica nova,2016,39(2):172-179.
[35]	WANG H C, JIANG C C, WANG X, et al. Application of internal carbon source from sewage sludge: a vital measure to improve nitrogen removalefficiency of low C/N wastewater[J/OL]. Water,2021,13(17),doi: 10.3390/w13172338.
[36]	PRESURA E, ROBESCU D L. Energy use and carbon footprint for potable water and wastewater treatment[J]. Proceedings of the International Conference on Business Excellence,2017,11(1):191-198.