摘要
为解决中国水体富营养化问题,将秸秆碳与硫酸铝作为一种有效吸附水体中总氮、总磷的吸附剂,通过室内模拟试验,采用平衡吸附法,考察了秸秆碳和硫酸铝投加量、pH值、振荡时间、温度、扰动、秸秆碳粒径等不同环境因素条件下对吸附效果的影响。结果表明:在秸秆碳和硫酸铝投加量为0.2 mg/L、振荡时间为120 min的条件下,吸附效果最好,去除率可达80%以上。通过对各因素与秸秆碳、硫酸铝对总氮和总磷的吸附效果分析得知,加入适量的秸秆碳和硫酸铝,可以降低水体中总氮、总磷的含量,吸附效果对温度、振荡时间、pH值变化敏感,这也为解决水体富营养化问题提供了基础依据。
In order to solve the problem of eutrophication in China,straw carbon and aluminum sulfate as an effective adsorbent used to absorption of total phosphorus and total nitrogen in water.Through the laboratory simulation test,by equilibrium adsorption method,the author investigated the effect on the adsorption under different environmental factors as the dosage of aluminum sulfate,pH,shaking time,temperature,disturbance,straw carbon size and so on.The results showed that with the dosage of aluminum sulfate and straw carbon was 0.2 mg/L,the shock time was 120 min,the best adsorption of the removal rate could reach 80% or more.Among different factors,aluminum sulfate and straw carbon the tatal phosphorus and nitrogen of adsorption analysis indicated that adding an appropriate amount of aluminum sulfate and straw carbon could reduce the total nitrogen and total phosphorus content in water,the adsorption on temperature,pH,shock time was sensitive.That was to provide a favorable basis for solving the problem of water environment in China.
出处
《水土保持学报》
CSCD
北大核心
2011年第2期114-120,共7页
Journal of Soil and Water Conservation
基金
科技部公益性行为农业科研专项经费项目"松辽平原玉米带高产土壤的肥力特征及形成机理研究"(200903001-06-2)
国家自然基金项目(31071862)
关键词
秸秆碳
硫酸铝
总氮
总磷
吸附
straw carbon
aluminum sulfate
total nitrogen
total phosphorus
adsorption
作者简介
王爽（1985-），女，吉林省辽源市，硕士研究生，主要从事农业面源污染研究。E-mail：wangshuangshuangwang@126．com
通讯作者：赵兰坡（1955-），男，吉林省长春市。教授，博士生导师，主要从事土壤养分调控研究。E—mail：zhaolanpo12@163．com
