多级厌氧系统处理阿卡波糖废渣的中试

PILOT STUDY ON TREATMENT OF ACARBOSE RESIDUE BY A MULTI-STAGE ANAEROBIC SYSTEM

阿卡波糖在生产过程中产生大量发酵废渣,目前采用焚烧法进行处理成本高昂,亟须一种环保低廉的处理方法。采用多级厌氧系统对阿卡波糖废渣进行处理,进料负荷达到4.173 kg/(m3·d)时,多级厌氧系统平均总产气量为390.4 m3/d,出料平均可溶性COD为8946 mg/L,系统可将废渣中残余的菌丝体降解完全,废渣固体质量去除率达到52.9%,废渣中残留的阿卡波糖由初始的0.361 mg/g(干渣)下降至0.027 mg/g(干渣),药物残留去除率达到92.5%。且厌氧出料的腐殖化程度大幅提高,实现了对阿卡波糖废渣的减量化和无害化处理。

Acarbose produced a large amount of fermentation waste in the production process. At present, the incineration method is generally expensive, therefore an environmentally friendly and inexpensive treatment method is urgently needed for this treatment. In this paper, the acarbose slag was treated by a multi-stage anaerobic system. When the feed load reached 4.173 kg(by dry residue)/(m3·d), the average total gas production of multistage anaerobic system was 390.4 m3/d. The average soluble COD of the effluent was 8946 mg/L, the system could completely degrade the residual mycelium in the waste residue, the solid mass removal rate of the waste residue was 52.9%, the residual acarbose in the waste residue decreased from 0.361 mg/g(dry residue) to 0.027 mg/g(dry residue), and the drug residue removal rate was 92.5%. The humification degree of anaerobic effluent was greatly improved, and the reduction and harmless treatment of acarbose residue were realized.