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北京石油化工学院2026年研究生招生接收调剂公告
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张健0513

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[求助] 污泥混合液中多糖,氨氮和硝态氮对污泥混合液PH有什么影响?

pH decreased from 6.84 to 5.2 when ozone dose up to 50.4 mgO3/gSS was used. Authors have stated that pH decline would be caused by the production of VFAs from sludge during ozonation. How can you justify this, bearing in mind that changes in VFAs (or possibly polyhydroxy acids) in the sludge was not determined? In addition, nitrogen species and polysaccharides were also produced from hydrolysis of sludge by ozonation. Please explain the impacts of the production of polysaccharides, NH4+-N and NO3--N on changes in pH.
审稿人提了这么个问题,无头绪啊,求高人指点
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