IC反應(yīng)器處理高濃度硫酸鹽廢水的啟動研究
采用木糖生產(chǎn)廢水,進(jìn)行了(IC)反應(yīng)器處理高濃度硫酸鹽有機(jī)廢水的啟動研究。結(jié)果表明,接種厭氧顆粒污泥,當(dāng)進(jìn)水COD/SO2-4值約為3.5時,控制COD負(fù)荷提高幅度為每次20%左右,經(jīng)過26 d的馴化培養(yǎng),COD和SO2-4負(fù)荷分別可達(dá)20 kg/(m3·d)和5.5 kg/(m3·d),COD去除率達(dá)到80%以上,硫酸根還原率達(dá)到90%以上,產(chǎn)氣率約0.60 L/g COD,產(chǎn)氣量約120 L/d,反應(yīng)器啟動成功。
Start-up of internal circulation(IC) reactor for treatment of high-strength sulfate wastewater was investigated fed with xylose wastewater. Results showed that the IC reactor could be started up successfully inoculated with anaerobic granular sludge, when the influent COD/SO2-4 ratio was 3.5, as well as the COD loading increased about 20% every time. After 26 days acclimation, the COD and SO2-4 load could be up to 20 kg/(m3·d) and 5.5 kg/(m3·d), respectively, the removal efficiency of COD was more than 80%, the SO2-4 reduction rate was more than 90%, the production rate of biogas was about 0.60 L/g COD, and the biogas production was about 120 L/d.
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