摘要
采用正交试验和单因素试验设计方法,考察预O3、PAC、PAM和主O3投量对藻类去除的影响程度。中试结果表明,在深圳夏季高藻季节,当原水藻密度小于2×107个/L时,预O3、PAC、PAM和主O3投量分别为1mg/L、1.5mg/L、0.05mg/L和2mg/L可保障炭滤出水藻密度在105个/L(深圳市生活饮用水水质目标)范围内;当原水藻密度增加到2×107个/L以上(3.5×107个/L以下)时,可通过加大投药量,即预O3、PAC、PAM和主O3投量分别为1.5mg/L以上、2mg/L、0.07mg/L和2.5mg/L,达到上述炭滤出水藻密度水平。
Pilot research was conducted to research the algae removal from raw water in Shenzhen. Orthogonal and single factor experiments were used to investigate the effects of chemical dosages of PAC, PAM, ozone in pre-ozonization and main ozonization. Results indicated that algae density could be reduced to about 100 thousand in one liter when the algae density of raw was less than 20 million in one liter, dosage of PAC, PAM, ozone in pre-ozonization and main ozonization were 1.5 mg/L, 0. 05 mg/L, 1 mg/L and 2 mg/L respectively. When the algae density of raw water excess 20 million in one liter （less than 35 million in one liter）, the dosage of PAC, PAM, ozone in pre-ozonization and main ozonization should be increased to 2 mg/L, 0. 07 mg/L, 1.5 mg/L and 2. 5 mg/L respectively, then the algae density of carbon filtered water will be controlled in the round of 100 thousand in one liter.
出处
《给水排水》
CSCD
北大核心
2007年第2期25-29,共5页
Water & Wastewater Engineering
基金
国家高技术研究发展计划(863)项目(2002AA601120)。
关键词
藻密度
去除率
药剂投加量
Algae density
Removal rate
Chemical dosage
