本文選題：甲苯二胺　切入點(diǎn)：厭氧污泥　出處：《化工環(huán)�！�2017年05期

【摘要】：以相對產(chǎn)甲烷活性(RA)和COD去除率為指標(biāo),考察不同濃度甲苯二胺對厭氧污泥微生物活性的影響。實(shí)驗(yàn)結(jié)果表明:甲苯二胺質(zhì)量濃度為0~150 mg/L時(shí),RA接近100%甚至高于100%,COD去除率為91%~93%,與對照組無差別,對厭氧微生物幾乎沒有抑制作用;當(dāng)甲苯二胺質(zhì)量濃度為200~400 mg/L時(shí),RA為75%~95%,COD去除率與對照組相比下降了2~6個(gè)百分點(diǎn),屬于輕度抑制;當(dāng)甲苯二胺質(zhì)量濃度高于400 mg/L時(shí),RA在70%以下,COD去除率降至85%以下,屬于中度抑制;且隨著甲苯二胺質(zhì)量濃度增大,RA減小、COD去除率減小,抑制作用增強(qiáng)。因此,為了防止甲苯二胺對厭氧污泥微生物活性的抑制,甲苯二胺質(zhì)量濃度應(yīng)控制在0~150 mg/L。
[Abstract]:The relative methanogenic activity (RAA) and the removal rate of COD were taken as indicators. The effects of different concentrations of toluene diamine on the microbial activity of anaerobic sludge were investigated. The results showed that when the concentration of toluene diamine was 0 ~ 150 mg/L, the removal rate of RA was close to 100% or even higher than that of the control group, and there was no difference between the two groups. When the mass concentration of toluene diamine was 200 ~ 400 mg/L, the COD removal rate of RA was 75% and 95% lower than that of the control group, which was slightly inhibited. When the mass concentration of toluene diamine is higher than 400 mg/L, the removal rate of RA below 70% is below 85%, which belongs to moderate inhibition, and with the increase of mass concentration of toluene diamine, the removal rate of RA decreases and the inhibitory effect is enhanced. In order to prevent the inhibition of toluene diamine on microbial activity of anaerobic sludge, the mass concentration of toluene diamine should be controlled at 150 mg / L.
【作者單位】： 四川大學(xué)建筑與環(huán)境學(xué)院;
【基金】：國家國際科技合作專項(xiàng)(2012DFG91520)
【分類號】：X172;X703

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