THE APPLICATION OF CHEMISTRY IN ENVIRONMENT
Year:2010 | Volume:1 | Issue:3|Papers Count:8

Regarding the high water application in the life and its importance in environmental, nowadays water treatment is one of the most important issues. There are a lot of ways for water purification like using filter, biological treatment, coagulation Using coagulants is one the best ways in this aim. Usually in sedimentation, gravity force is being used. Coagulation is the sedimentation method by using some chemicals. There are varieties of coagulants: organic, non organic In this research we have tested none organic ones, like Poly Chloride Aluminum, Poly Chloride Aluminum Sulfate, Chloride Ferric and Aluminum Sulfate. In comparison, Poly Chloride Aluminum Sulfate has the minimum consumption and settling time. Result shows with having the same concentration of coagulant, Poly Chloride Aluminum Sulfate has the maximum rate of coagulation.

With increasing population and expanding cities requires constant human materials be more. Increased materials that enhance the human waste are entering the environment. This waste pollution is one important factor is considered. Plasma gas conversion process in which complex organic molecules and carbon in both liquid and solid and gas used to produce simple. More flammable gases are produced and ultimately as a process fuel or flammable gases in applications that are required to be applied. This is one of the most advanced and most expensive methods and for all types of waste; especially for special wastes such as hospital waste is used. The Plasma gas production method has technical method and Used for waste disposal, but nevertheless had its own complexity and is expensive.

Background and Objective: Today, industries especially food and drinking industries are the second users of fresh water. Water has important and variety consumptions at food and drinking industries and in some cases more than 90% of final products are consist of water. Considering the wide range sources of heavy metal emission to environment, health effects of heavy metals presence and other possible pollutions of water sources, consumed water in mentioned industries should be in compatible with quality requirements.Methods: Present study is a cross sectional-descriptive study. Among the 377 food, drug and health units in the East Azerbaijan province, 9 food and drinking factories was selected and water samples were collected during two different seasons and analyzed for heavy metals presence and other general characteristics.Results: According to the results, chemical quality of water consumed at some of studied industries regarding presence of some cations (magnesium) and anions (nitrate and sulphate) were unsuitable. At some industries, level of Pb was close to MCL and in 1 case; Cd was 8.4 folds higher than national MCL, 0.042 mg/L.Conclusion: Regarding to presence of chemical pollution in consumed water of some studied industries, and as a main approach, it is required drinking water to be used as water supply for processing of food and drinking products, otherwise the water should be treated using treatment processes to met drinking water standard levels.In the case of nitrate monthly control and for Cd and Pb 6 months control is recommended.

Three partial responses among di Alkyl Acetylene dicarboxylate, Tri Phenyl Phosphite and pyrrole or Indole Induce the phosphonate poly factor with high yield.