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Construction and development of Iranian industrial wastewater treatment plants (WWTPs) are the same as in developed countries. According to the Iranian small industries and industrial parks organization report (ISIPO 2012), the first WWTP with a capacity of 1,700 m3/day went into operation at Abbas-abad industrial park in 2005. Currently, about 37% of all industrial parks in Iran are equipped with WWTPs and nearly 69% of all operational factories are connected to such treatment plants. Based on government data, the quantity of Ww and Pw for the present and future status of the industrial sector is presented in Table 2 (MOE 2010).

Table 2

Quantity of Ww and Pw in different industry fields

Year
2011
2016
2021
Industry fieldWw (Mm3)Pw (Mm3)Ww (Mm3)Pw (Mm3)Ww (Mm3)Pw (Mm3)
Food, beverage and tobacco 368.4 239.9 480.2 306.2 600.2 390.7 
Textile, clothing and leather 180.1 96.7 229.9 123.5 293.4 157.6 
Wood and timber services 5.7 4.7 7.3 9.3 7.6 
Paper and printing 6.9 2.7 8.8 3.5 11.2 4.4 
Chemical 262.6 110.4 335.2 141 427.8 180 
Non-metallic mineral 250 190 390 152 407.2 163.6 
Manufacturing of basic metals 111.5 39.1 142.4 50 181.7 63.7 
Machinery and equipment 60.7 48.7 77.4 62.1 98.8 79.3 
Power plants 43.8 6.7 55.9 8.6 71.4 10.9 
Total 1,289.9 668.1 1,646.3 852.7 2,101 1,088.3 
Year
2011
2016
2021
Industry fieldWw (Mm3)Pw (Mm3)Ww (Mm3)Pw (Mm3)Ww (Mm3)Pw (Mm3)
Food, beverage and tobacco 368.4 239.9 480.2 306.2 600.2 390.7 
Textile, clothing and leather 180.1 96.7 229.9 123.5 293.4 157.6 
Wood and timber services 5.7 4.7 7.3 9.3 7.6 
Paper and printing 6.9 2.7 8.8 3.5 11.2 4.4 
Chemical 262.6 110.4 335.2 141 427.8 180 
Non-metallic mineral 250 190 390 152 407.2 163.6 
Manufacturing of basic metals 111.5 39.1 142.4 50 181.7 63.7 
Machinery and equipment 60.7 48.7 77.4 62.1 98.8 79.3 
Power plants 43.8 6.7 55.9 8.6 71.4 10.9 
Total 1,289.9 668.1 1,646.3 852.7 2,101 1,088.3 

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