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Simultaneous brine recovery and water depollution in highly saline leather industry wastewater using a united halophiles supported nano porous carbon catalyst
Journal of Cleaner Production ( IF 11.1 ) Pub Date : 2021-10-18 , DOI: 10.1016/j.jclepro.2021.129419
P. Maharaja 1, 2 , S. Sivashankaran 2 , V. Nagabalaji 1, 3 , S.V. Srinivasan 1 , S. Swarnalatha 2 , Sekar Karthikeyan 4 , G. Sekaran 2, 5
Affiliation  

The united water depollution of organic compounds and simultaneous brine recovery from leather industry saline wastewater (soak liquor contains 4–5% NaCl) using halophiles immobilized carbon reactors are investigated in this study. Initially, three active halophilic organisms such as Serratia marcescens sp., Citrobacter freundii sp., and Salmonella typhimurium sp., were screened from the NaCl-organics acclimatized leather industry deep soil. The halophilic organism's growth parameters such as incubation time, pH, and temperature, salinity, and substrate concentrations were optimized. The halophiles united carbon catalyst was used in fluidized bed reactor (FICCO) and packed bed reactor (CAACO). The FICCO and CAACO reactors used to recover the brine from soak liquor which is free from the organics such as amino acids, glycerol, fatty acids, glucosamine and glucuronic acid derived from the treatment of protein, lipids and mucopolysaccharides containing soak liquor depolluted by SOAR- En-NPAC reactors. The SEM and AFM images reinforced the halophiles integrated on the surface of carbon matrix. The maximum retention time of 6 h, for water depollution from the organic compounds achieved by FICCO reactor at highly saline medium and the COD, 98%; BOD, 95%; TOC, 92%; TN, 93%; TSS, 85% and 92% of VS eliminated using FICCO and CAACO reactors. The final treated wastewater evaporated under solar incubation and the recovered brine was characterized by the analytical techniques such as SEM, XRD and ICP-OES used to verify the purity.



中文翻译:

使用联合嗜盐载体纳米多孔碳催化剂在高盐皮革工业废水中同时进行盐水回收和水净化

本研究使用嗜盐固定碳反应器对有机化合物的联合去污和同时从皮革工业含盐废水(浸泡液含有 4-5% NaCl)中回收盐水进行了研究。最初,三种活跃的嗜盐生物,如粘质沙雷氏菌。, 弗氏柠檬酸杆菌sp. 和鼠伤寒沙门氏菌,是从 NaCl-有机驯化皮革工业深层土壤中筛选出来的。嗜盐生物体的生长参数,如温育时间,pH值和温度,盐度,和底物浓度进行了优化 . 嗜盐联合碳催化剂用于流化床反应器(FICCO)填充床反应器(CAACO)。FICCO和CAACO反应器用于从浸渍液中回收盐水,浸渍液不含氨基酸、甘油、脂肪酸、氨基葡萄糖和葡萄糖醛酸等有机物,这些有机物来自SOAR处理的含有蛋白质、脂质和粘多糖的浸渍液- En-NPAC 反应器。SEM和AFM图像增强集成碳基体的表面上的嗜盐。FICCO 反应器在高盐介质和化学需氧量,98%;生化需氧量,95%;总有机碳,92%;总氮,93%;使用 FICCO 和 CAACO 反应器消除了TSS、85% 和 92% 的VS。最终处理过的废水在阳光下蒸发,回收的盐水通过SEM、XRD 和 ICP-OES等分析技术进行表征,以验证纯度。

更新日期:2021-10-24
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