本文選題：鈍化劑　切入點：豬糞　出處：《中國沼氣》2017年02期 　論文類型：期刊論文

【摘要】：為了減少重金屬污染,文章在豬糞厭氧發(fā)酵過程中添加鈍化劑,探討鈍化劑對甲烷含量、重金屬含量的影響,以期為減少重金屬污染提供有效途徑。筆者選用鈍化劑種類、鈍化劑濃度及溫度3個因素,每個因素取3個水平,采用正交設計的方法,對豬糞進行厭氧發(fā)酵。結果表明:影響豬糞厭氧發(fā)酵甲烷含量的因素主次順序為:鈍化劑種類、溫度、鈍化劑濃度,甲烷含量最高的處理為采用7.5%濃度的活性炭鈍化劑,在35℃條件下反應的處理組合;影響豬糞厭氧發(fā)酵后重金屬Cu含量的因素主次順為:溫度、鈍化劑種類、鈍化劑濃度,Cu含量減少最多的處理為溫度為25℃,5%濃度粉煤灰鈍化劑的處理組合;影響豬糞厭氧發(fā)酵后重金屬Zn含量的因素主次順為鈍化劑種類、溫度、鈍化劑濃度,Zn含量減少最多的處理為:5%濃度的粉煤灰鈍化劑,溫度為25℃的處理組合。豬糞厭氧發(fā)酵后,各組試驗中沼渣中重金屬含量均降低,沼液中重金屬含量均增加,大多數(shù)組重金屬總的含量減小。
[Abstract]:In order to reduce heavy metal pollution, the effects of passivating agent on methane content and heavy metal content in pig manure anaerobic fermentation were discussed in order to provide an effective way to reduce heavy metal pollution. The concentration and temperature of passivating agent were taken at 3 levels for each factor, and the anaerobic fermentation of pig manure was carried out by orthogonal design. The results showed that the main and secondary factors affecting methane content in anaerobic fermentation of pig manure were the types of passivating agents. The treatment of temperature, concentration of passivating agent and the highest content of methane is the treatment combination of activated carbon passivating agent of 7.5% concentration at 35 鈩，

本文編號：1652447