Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 702-701, Republic of Korea.
Department of Environmental Engineering, Konkuk University, Seoul 143-701, Republic of Korea.
Bioresour Technol. 2015 Jan;176:38-46. doi: 10.1016/j.biortech.2014.10.137. Epub 2014 Nov 4.
Dye sludge generation is major drawback of coagulation process. Efficient hybrid technology by combining coagulation and solid state fermentation (SSF) has capacity to solve generated dye sludge problem. Coagulation of 100mg/L Reactive Red 120 (RR120) using ZnCl2 showed 99% color removal. Mixture of textile dyes (MTD) and textile wastewater (TW) showed 96% and 98% ADMI (American Dye Manufacturing Institute) removal after coagulation by ZnCl2. 92% and 94% ADMI removal from MTD and TW dye sludge and 96% decolorization of RR120 sludge was observed respectively by developed microbial consortium (DCM) in 72h under SSF. Scale up of coagulation process by coagulation reactor (CR) having 50L capacity operated for 30min/cycle. CR showed average 94% ADMI removal from TW in 10 successive cycles. Scale up of SSF composting bioreactor (CB) showed complete dye removal from dye sludge obtained from CR (500L of TW) in 30days.
染色污泥的产生是混凝过程的主要缺点。通过将混凝和固态发酵（SSF）相结合的高效混合技术有能力解决产生的染色污泥问题。使用 ZnCl2 对 100mg/L 活性红 120（RR120）进行混凝，显示出 99%的颜色去除率。混合纺织染料（MTD）和纺织废水（TW）在 ZnCl2 混凝后分别显示出 96%和 98%的美国染料制造商协会（ADMI）去除率。开发的微生物联合体（DCM）在 SSF 下 72 小时内分别从 MTD 和 TW 染料污泥中去除 92%和 94%的 ADMI，从 RR120 污泥中去除 96%的脱色。具有 50L 容量、每个周期运行 30 分钟的混凝反应器（CR）对混凝过程进行放大。CR 在 10 个连续循环中平均从 TW 中去除 94%的 ADMI。SSF 堆肥生物反应器（CB）的放大显示，从 CR（500L TW）获得的染料污泥中在 30 天内完全去除了染料。
