شهرک صنعتی

Industries play an important role in the development of societies. The generation of large volumes of industrial waste with complex characteristics makes their management a challenge. In addition to occupying the land, the accumulation of these wastes causes environmental pollution. The main purpose of this study is to identify industrial wastes in the industrial zone of Gilan province and to investigate their management system. In this study, 11 industrial zones in Gilan province were investigated in 15 industrial groups. Astara industrial zone has the lowest number of units with six active units, and the largest number of active units under investigation is Sepidroud industrial zone (41 units) and then Rasht industrial zone (37 units). The food industry group with 50 active units (24%) has contributed the most in investigating the type and amount of industrial waste in Gilan province. Based on the data of the study, the total amount of industrial waste is 45926 tons per year. In addition, the main special genaration wastes are 60314 liters of used oils and 16707 tons of different types of wastes per year. The metal industrial group generated the largest amount of industrial waste with the genaration of 32917 tons per year. Also, the cellulose and synthetic oil industrial group units have the highest amount of hazardous waste genaration per year with the genaration of 29,600 liters and 6,300 tons, respectively. Based on the data obtained from the industrial units, the total sales and recycling methods accounted for 54.1% and disposal for 45.9% of cases. Obtaining information on industrial waste flow in Gilan province provides the opportunity to recover and save identified resources. In addition, many economic and environmental benefits are obtained by making a decision and implementing proper waste management.

Soil contamination is one of the major problem in the world. Abyek industrial zone situated in Qazvin province. In these research soil contamination of surrounding area of Abyek industrial town has been studied. In these study arsenic amount as a soil contaminant were measured. Sampling of six contaminated and one control point were done. Soil parameters were measured too. Soil sampling at surface and depth of 5 and 10 cm were done. Result shown that with depth increasing the amount of Arsenic were increased. Lower amount of arsenic were reported at control point and higher amount reported at area between highway and industrial town. Higher amount of arsenic was on the south side of industrial town. Generally, the arsenic content of soil in the abyek industrial town is standard. first seems vehicles has an inmportamnt effect on arsenic concentration in soils but statistical results shown with 95% confidence that soil arsenic has an industrial origin.