By simulating the biochemical units in the process of leachate treatment in the laboratory,the denitrification rate,carbon nitrogen ratio,biodegradability,and nitrogen impurities were compared,and seven different denitrification carbon sources were evaluated.Based on this,the engineering application effects were studied.The results indicate that the most promising carbon source preliminarily screened by the laboratory has the same level of indicators in engineering applications,such as effluent quality,denitrification rate,and sludge coefficient,as when methanol is used as the denitrification carbon source.From an economic perspective,when the market procurement unit price of methanol is higher than 2800 yuan/t,the composite carbon source has a more price advantage.Conversely,it is recommended to choose methanol as the denitrification carbon source.
关键词
渗滤液/碳源/筛选评估/反硝化速率/投加方式/经济性/生态环保
Key words
leachate/carbon source/screening and evaluation/denitrification rate/dosing method/economy/eco-environment protection
维普
万方数据