Industrial watewater treatment

许多行业都会产生含有有毒化合物的废水。这些有毒化合物既包括无机(重金属)化合物，也包括有机(酚类/芳香族)化合物。其中许多是致癌的，必须在废水排放到接收水域之前将其去除。这里提出了两个研究项目来解决这个问题。-电镀或采矿行业排放的重金属毒性很大。这些金属往往留在溶液中，因此很难除去。在拟议的项目中，这些金属将被允许与硫化物结合，产品有望从溶液中沉淀出来，这将改善水质。然而，挑战是要产生足够的硫化物来与这些金属结合。在这个项目中，正在采取一种创新的方法来增加硫化物的产量，从而开发一种有效的处理工艺。-从炼油厂排放的酚等有机物可能会留在溶液中，并污染水的途径。在这个项目中，建议使用酶来与这些化合物在工业排放时发生反应。由于反应的产物不溶于水，因此可以通过沉淀去除。通过去除这些产物，我们可以从水中去除酚和其他类似的有毒化合物。

Many industries produce wastewater that contains toxic compounds. These toxic compounds include both inorganic (heavy metals) as well as organic (phenolic/aromatic) compounds. Many of them are carcinogenic and must be removed before the wastewater can be discharged into the receiving waters. Two research projects are presented here which address this problem. -Heavy metals discharged by electroplating or mining industries are very toxic. These metals tend to remain in solution and therefore it is difficult to remove them. In the proposed project these metals will be allowed to combine with sulfide and the products are expected to settle out of the solution, which would improve the water quality. However, the challenge is to generate enough sulfide to bind with these metals. In this project an innovative approach is being taken to increase the production of sulfide, and thus develop an efficient treatment process. - Organics such as phenols discharged from refineries, etc. can remain in solution and pollute water ways. In this project it is proposed to use enzymes to react with these compounds as they are discharged by the industries.  The products of the reactions are not soluble in water and therefore, can be removed by settling.  By removing these products we can remove phenols and other similar toxic compounds from water.