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As illustrated, food, textile, chemical, and non-metallic mineral industries have more water consumption than other fields in both the present and future. Total industrial wastewater production is 0.668 bcm, 0.853 bcm, and 1.09 bcm in 2011, 2016, and 2021, respectively. The main quality parameters for some industrial wastewaters are shown in Table 3 (MOE 2010).

Table 3

Quality parameters of food, textile, chemical, and metal industry wastewater in Iran

Main parameterspHTurbidity (NTU)Alkalinity (Mg/L)TSS (Mg/L)BOD (Mg/L)COD (Mg/L)
Food industry 8.7 195 369 473 1,412 1,494 
Textile industry 6–13 61–87 500–800 100–5,000 100–4,000 150–10,000 
Chemical industry Pharmaceutical 6.5 175 128 315 300 580 
Cosmetic 10.3 175 138 315 300 580 
Paint 8.3 27,000 1,078 2,083 379 7,900 
Carton 10.2 7,675 1,260 47,980 26,750 94,160 
Metal industry Plating 6.7 9.5 170 41 15 61 
Color and glaze operation 10 138 580 26 40 80 
Main parameterspHTurbidity (NTU)Alkalinity (Mg/L)TSS (Mg/L)BOD (Mg/L)COD (Mg/L)
Food industry 8.7 195 369 473 1,412 1,494 
Textile industry 6–13 61–87 500–800 100–5,000 100–4,000 150–10,000 
Chemical industry Pharmaceutical 6.5 175 128 315 300 580 
Cosmetic 10.3 175 138 315 300 580 
Paint 8.3 27,000 1,078 2,083 379 7,900 
Carton 10.2 7,675 1,260 47,980 26,750 94,160 
Metal industry Plating 6.7 9.5 170 41 15 61 
Color and glaze operation 10 138 580 26 40 80 

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