[1]章一丹,徐灏龙,白俊跃,等.印染工业园区污水厂提标改造关键技术中试研究[J].中国给水排水,2024,40(21):116-120.
　ZHANGYi-dan,XUHao-long,BAIJun-yue,et al.Pilot Testing of Key Technologies for Upgrading of a Wastewater Treatment Plant in a Printing and Dyeing Industrial Park[J].China Water & Wastewater,2024,40(21):116-120.
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印染工业园区污水厂提标改造关键技术中试研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期数: 2024年第21期 页码: 116-120 栏目: 出版日期: 2024-11-01
Title:
Pilot Testing of Key Technologies for Upgrading of a Wastewater Treatment Plant in a Printing and Dyeing Industrial Park
作者:
章一丹1,2,3， 徐灏龙1,2,3， 白俊跃1,2,3， 王长智1,2,3
（1.浙江省生态环境科学设计研究院，浙江 杭州 310007；2.国家环境保护水污染控制工程技术<浙江>中心，浙江 杭州 310007；3.浙江省环境污染控制技术研究重点实验室，浙江 杭州 310007）
Author(s):
ZHANG　Yi-dan1，2，3， XU　Hao-long1，2，3， BAI　Jun-yue1，2，3， WANG　Chang-zhi1，2，3
（1. Eco-Environmental Science Research & Design Institute of Zhejiang Province， Hangzhou 310007， China； 2. State Environmental Protection Engineering Center for Water Pollution Control， Hangzhou 310007， China； 3. Key Laboratory of Environmental Pollution Control Technology of Zhejiang Province， Hangzhou 310007， China）
关键词:
印染工业园区;  污水处理厂;  间歇膨胀水解池;  新型脱色混凝剂
Keywords:
printing and dyeing industrial park;  wastewater treatment plant;  intermittent expansion hydrolysis tank;  new decolorization coagulant
摘要:
钱塘江流域某印染工业园区污水厂处理量为30×104 m3/d，具有水量大、水质变化大、工业废水比例高、B/C值低、处理难度大等特点，采用间歇膨胀水解+好氧+脱色混凝组合工艺对其进行处理，取得了理想效果。在进水COD为1 084.2 mg/L、色度为173 倍、TP为10.20 mg/L和NH3-N为38.98 mg/L的条件下，出水COD达到95.3 mg/L、色度达到14.5 倍、TP达到0.44 mg/L、NH3-N达到11.52 mg/L，符合《污水综合排放标准》（GB 8978—1996）一级标准。间歇膨胀水解池对COD的去除率达到27.9%，B/C值增幅为11.2%，可生化性明显提高；可替代初沉池达到同样的COD去除效果，同时还具有停留时间短、污泥产量小等特点，污泥量约为现有系统的80.7%。新型脱色混凝剂的脱色率为79.6%，COD去除率为41.0%，替代传统混凝药剂具有更好的色度和COD去除效果。
Abstract:
The treatment capacity of a wastewater treatment plant in a printing and dyeing industrial park in the Qiantang River basin is 30×104 m3/d. The wastewater exhibits characteristics such as large flow rate, significant fluctuations in water quality, a substantial proportion of industrial wastewater, a low biochemical oxygen demand to chemical oxygen demand (B/C) ratio, and challenges in treatment. A combined process involving intermittent expansion hydrolysis, aerobic treatment and decolorization and coagulation was implemented for its treatment, yielding optimal results. Under the influent conditions of COD at 1 084.2 mg/L, chroma at 173 times, total phosphorus (TP) at 10.20 mg/L, and ammonia nitrogen (NH3-N) at 38.98 mg/L, the effluent COD, chroma, TP and NH3-N was 95.3 mg/L, 14.5 times, 0.44 mg/L and 11.52 mg/L, respectively, complying with the class Ⅰ limit specified in Integrated Wastewater Discharge Standard (GB 8978-1996). The COD removal efficiency of the intermittent expansion hydrolysis tank reached 27.9%, while the B/C ratio increased by 11.2%, indicating a significant enhancement in biodegradability. It could serve as a substitute for the primary sedimentation tank, achieving equivalent COD removal efficiency while exhibiting characteristics of reduced residence time and minimal sludge production. The resulting sludge volume was approximately 80.7% of that produced by the existing system. The decolorization efficiency of the new decolorization coagulant was 79.6%, while its COD removal efficiency was 41.0%. This new coagulant demonstrated superior performance in both chroma and COD reduction compared to traditional coagulants.

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更新日期/Last Update: 2024-11-01