锰渣堆肥过程中理化性质及基于Tessier法的重金属行为分析
发布时间：2018-07-28 11:33
【摘要】：通过堆肥发酵,研究了电解锰渣、废糖蜜和甘蔗渣在一定配比下添加活性污泥、猪粪水、城市河湖污泥、树林腐土、生物菌剂以及不添加微生物来源物对废渣中重金属化学形态和理化特性的影响。堆肥处理30 d监控其物理特性,采用ICP法分析了6种重金属元素总量,并利用Tessier五步连续浸取法对堆肥前后做重金属的形态分析。结果表明:堆肥过程中系统温度均高于环境温度;6种条件下,堆肥体系的pH值均得到了显著提高;堆肥可以降低电解锰渣态中重金属的生物有效性。堆肥处理有利于降低电解锰渣利用中重金属污染的风险。
[Abstract]:By compost fermentation, electrolytic manganese slag, molasses and bagasse were added to activated sludge, pig dung water, urban river and lake sludge, forest saproot under certain proportion. Effects of microbial agents and no microbial sources on the Chemical forms and Physicochemical Properties of heavy Metals in waste residue. The physical properties of compost were monitored for 30 days. The total contents of six heavy metals were analyzed by ICP method, and the speciation of heavy metals before and after composting were analyzed by Tessier five-step continuous leaching method. The results showed that the pH value of composting system was significantly increased when the system temperature was higher than that of environmental temperature, and the bioavailability of heavy metals in electrolytic manganese residue could be reduced by composting. Compost treatment can reduce the risk of heavy metal pollution in the utilization of electrolytic manganese slag.
【作者单位】： 中南民族大学资源与环境学院;
【基金】：国家科技支撑计划项目(2015BAB01B03)
【分类号】：X781.1
，
本文编号：2150000
[Abstract]:By compost fermentation, electrolytic manganese slag, molasses and bagasse were added to activated sludge, pig dung water, urban river and lake sludge, forest saproot under certain proportion. Effects of microbial agents and no microbial sources on the Chemical forms and Physicochemical Properties of heavy Metals in waste residue. The physical properties of compost were monitored for 30 days. The total contents of six heavy metals were analyzed by ICP method, and the speciation of heavy metals before and after composting were analyzed by Tessier five-step continuous leaching method. The results showed that the pH value of composting system was significantly increased when the system temperature was higher than that of environmental temperature, and the bioavailability of heavy metals in electrolytic manganese residue could be reduced by composting. Compost treatment can reduce the risk of heavy metal pollution in the utilization of electrolytic manganese slag.
【作者单位】： 中南民族大学资源与环境学院;
【基金】：国家科技支撑计划项目(2015BAB01B03)
【分类号】：X781.1
，
本文编号：2150000
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