Standard achievement evaluation of water function zones and total limited pollution in the Huaihe River Basin of Jiangsu Province
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Abstract:
NH 32 N and ( COD) Mn w ere selected to evaluate the standar d lev el of water function zo nes in the H uaihe River Basin of Jiang su Pro vince based on the t ime measuring method. The results show ed that the standard2achiev ement rates of t he lake w ater function zones ar e much hig her than t ho se of r iver w ater functio n zones, and the rates var y significantly in differ ent reg io ns with Xuzhou having t he low est rate. Accor ding to t he volume of sw age and w ater resources car ry ing capacity in the w ater functio n zo nes, the tot al allow able pollutants discharg ed in the planning years ( 2020 and 2030) w ere estimated as 43. 5 thousand tons COD and 4. 3 tho usand to ns NH 32N in y ear 2020, and 32 tho usand tons COD and 2. 5 tho usand to ns NH 32 N in y ear 2030.
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