[1]朱晔宸,张铮惠,徐俭,等.高藻太湖表层水深井加压混凝浓缩技术研究及应用[J].中国给水排水,2023,39(19):53-60.
　ZHUYe-chen,ZHANGZheng-hui,XUJian,et al.Application of Deep Well Pressurized Coagulation Concentration Technology in the Treatment of High Algae?laden Surface Water from Taihu Lake[J].China Water & Wastewater,2023,39(19):53-60.
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高藻太湖表层水深井加压混凝浓缩技术研究及应用

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第19期 页码: 53-60 栏目: 出版日期: 2023-10-01
Title:
Application of Deep Well Pressurized Coagulation Concentration Technology in the Treatment of High Algae?laden Surface Water from Taihu Lake
作者:
朱晔宸1， 张铮惠2， 徐俭2， 陈旭清2， 胡航宇3， 徐卿源1， 张森1， 丛海兵1
（1.扬州大学 环境科学与工程学院，江苏 扬州 225127；2.无锡市蓝藻治理办公室，江苏 无锡 214000；3.无锡德林海环保科技股份有限公司，江苏 无锡 214000）
Author(s):
ZHU　Ye-chen1， ZHANG　Zheng-hui2， XU　Jian2， CHEN　Xu-qing2， HU　Hang-yu3， XU　Qing-yuan1， ZHANG　Sen1， CONG　Hai-bing1
（1. College of Environmental Science and Engineering， Yangzhou University， Yangzhou 225127，China； 2. Wuxi Cyanobacteria Treatment Office， Wuxi 214000， China； 3. Wuxi Delinhai Environmental Technology Company， Wuxi 214000， China）
关键词:
高藻太湖表层水;  深井加压;  混凝沉淀;  浊度
Keywords:
high algae-laden surface water from Taihu Lake;  deep well pressurized;  coagulation sedimentation;  turbidity
摘要:
为了探索高藻太湖表层水深井加压混凝沉淀浓缩技术的可行性，并优化技术参数后将其应用于工程实践，采用混凝实验优化了混凝剂投加量，采用静态沉淀实验测定了加压混凝高藻太湖表层水颗粒的沉淀速度，采用中试研究了深井加压混凝沉淀高藻太湖表层水的处理效果。结果表明，将PAC/干藻（质量比）控制在16%~32%、PAM/干藻（质量比）控制在0.3%~0.4%，混凝后高藻太湖表层水颗粒的沉淀速度可达47 cm/min左右，沉淀池表面负荷可达10 m3/（m2·h），实际工程中可将平均含固率为0.5%的高藻太湖表层水浓缩至平均含固率为4.08%，使出水浊度为1.83~8.33 NTU，叶绿素a浓度为6.32~11.72 ?g/L，TN为0.30~5.20 mg/L，TP为0.03~0.26 mg/L。
Abstract:
This paper optimized the dosage of coagulant by coagulation experiment, determined the settling velocity of the particles in high algae-laden surface water from Taihu Lake after pressurized coagulation through static settling experiment, and investigated the performance of deep well pressurized coagulation for the treatment of high algae-laden surface water in a pilot test, so as to explore its feasibility for the concentration of high algae-laden surface water, optimize the technical parameters and apply it to engineering practice. When the ratio of PAC dosage to dry weight of algae was controlled at 16%-32%, and the ratio of PAM dosage to dry weight of algae was controlled at 0.3%-0.4%, the settling velocity of particles in the high algae-laden surface water from Taihu Lake after pressurized coagulation reached approximately 47 cm/min, and the surface load of the settling tank reached 10 m3/(m2·h). In the actual project, the high algae-laden surface water could be concentrated from the average solid content of 0.5% to 4.08%, resulting in the effluent turbidity, chlorophyll-a, TN and TP decreased to 1.83-8.33 NTU, 6.32-11.72 g/L, 0.30-5.20 mg/L, and 0.03-0.26 mg/L.
更新日期/Last Update: 2023-10-01