optimal nutrient ratios for wastewater treatment plant in china

optimal nutrient ratios for wastewater treatment plant in china
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  • Can wastewater treatment plants control nutrient release?
  • Although wastewater treatment plants have always been assessed by their nutrient removal efficiencies, they could also act as points for controlled nutrient release to actively control the nutrient levels and nutrient ratio in receiving surface waters. Wastewater treatment plant operators face strict effluent regulations.
  • How much phosphorous is reduced in a wastewater treatment plant?
  • The ammonia reduction was only 13.2 to 18.3 mgN/L and the phosphorous reduction was almost constant at 2.5 mgP/L from 2001 to 2007 , implying unsatisfied process performances in current WWTPs. Nutrients reduction in municipal WWTPs based on treated wastewater in China.
  • Are nitrogen and phosphorous removal advances in municipal WWTPs in China?
  • This paper reviewed the advances of nitrogen and phosphorous removal in municipal WWTPs in China. The construction of municipal WWTPs was gradually increased in last decade. AAO, SBR, and OD processes were major candidates for process design, but their performances were unsatisfied according to the more strict discharge criteria.
  • Should nutrient removal techniques be implemented in municipal WWTPs?
  • Although a lot of attempts have been contributed for nutrients removal, more attentions should be paid to the introduction, instruction, and implementation of advanced techniques in municipal WWTPs by considering the urgent crisis of surface water contamination and water resource shortage.