(中南大學(xué) 冶金科學(xué)與工程學(xué)院，長(zhǎng)沙 410083)
摘 要: 為揭示上流式厭氧反應(yīng)器(UASB)改性污泥處理含鉻廢水過(guò)程中硫酸根還原與化學(xué)需氧量(COD)的去除、 微生物增長(zhǎng)之間的定量關(guān)系， 在合理的假設(shè)及分析下， 通過(guò)理論推導(dǎo)建立了COD降解與硫酸根還原的動(dòng)力學(xué)模型， 并通過(guò)實(shí)驗(yàn)測(cè)得了動(dòng)力學(xué)參數(shù)。 用不同硫酸根濃度下UASB改性污泥體系處理含鉻廢水過(guò)程中的數(shù)據(jù)對(duì)所建動(dòng)力學(xué)模型進(jìn)行了驗(yàn)證， S2-的實(shí)測(cè)值和理論值擬合很好(R=0.986 7)， 表明所建動(dòng)力學(xué)模型可以描述UASB改性污泥處理含鉻廢水過(guò)程。
關(guān)鍵字: 改性污泥; 含鉻廢水; 上流式厭氧反應(yīng)器; 動(dòng)力學(xué)模型
adjusted activated sludge in UASB
LUO Sheng-lian
（School of Metallurgy Science and Engineering,
Central South University, Changsha 410083, China）
Abstract: Quantitative relationship among sulfate-reducing, chemical oxygen demand(COD)-removal and microorganism-growth was investigated, which is of importance for chromium-containing wastewater treatment in upflow anaerobic sludge blanket (UASB). Then, with reasonable assumption and analysis, dynamic model of sulfate-reducing and COD-removal was constructed through theoretical deduction, accordingly dynamic parameters were deter mined by experiments. Furthermore, the dynamic model was testified by actual experimental data, the measured and theoretical values of S2- in UASB under different sulfate concentrations of input are accordant (R=0.986 7), which indicates that the model can be used to describe the process of chromium-containing wastewater treatment in UASB completely.
Key words: adjusted activated sludge; chromium-containing wastewater; upflow anaerobic sludge blanket(UASB); dynamic model
