The project was designed according to the theory of biological fixation and removal of manganese.
以生物固锰除锰理论为指导，设计了弱曝气一级过滤生物除铁除锰简缩流程。
The anthracite used as filter material in water plant for biological removal of iron and manganese has been studied and practiced through production practices.
目的通过生产实践，进行了无烟煤作为在生物除铁除锰水厂滤料的研究与应用。
The effects of aeration on biological iron and manganese removal in groundwater were investigated and the appropriate aeration pattern was established.
为了研究曝气在生物除铁除锰中的作用，确定合理的曝气方式和曝气强度。
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