Industrial watewater treatment

许多工业生产的废水含有有毒化合物。这些有毒化合物包括无机（重金属）和有机（酚类/芳香族）化合物。其中许多是致癌物质，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。-电镀或采矿业排放的重金属毒性很大。这些金属倾向于留在溶液中，因此很难去除。在拟议的项目中，这些金属将被允许与硫化物结合，产物有望从溶液中沉淀出来，这将改善水质。然而，挑战在于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，从而开发出一种有效的处理工艺。-从炼油厂等排放的酚类有机物可能留在溶液中并污染水源。在本项目中，建议利用酶与工业排放的这些化合物发生反应。反应产物不溶于水，因此可以通过沉淀除去。通过去除这些产品，我们可以去除水中的酚类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.