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Development and application of new phosphorus removal agent

Author: ZhangLi
Tutor: LuoRuXian
School: Wuyi University
Course: Applied Chemistry
Keywords: Phosphorus removal The compound modified phosphorus removal agent Phosphorus from Wastewater
CLC: X52
Type: Master's thesis
Year: 2010
Downloads: 97
Quote: 0
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Abstract


Eutrophication is one of the outstanding environmental problems of how to deal with eutrophic water recycling is an urgent task of the treatment process . China promulgated the \The the existing phosphorus removal is very difficult to meet emission standards , biological phosphorus removal for secondary pollution problem ; chemical phosphorus removal is the Pharmacy expensive, higher operating costs and a large quantity of chemical sludge ; conventional assay adsorption capacity high anti-interference, dissolved loss , there are still some problems. In this experiment cheap bentonite as a raw material , purified , activated compound modifier prepared composite phosphorus removal agent to determine the optimum conditions for the preparation of , and phosphorus removal performance including the preparation of Phosphate in wastewater as well as the actual water the study of phosphorus good treatment effect . Modified Characterization of Product : bentonite intergranular molecules and La3 Ti4 ion exchange reaction , CTAB modified insert the bentonite spacing increases , increased activity of powerful expression in the process . Certain quality than by phosphorus and the modified composite phosphorus removal agent dosing the modified composite phosphorus removal agent for processing , the phosphorus removal rate of 90% . Room temperature had no significant effect on phosphorus removal , at room temperature, the phosphorus treatment . The same time, the pH value of 6-9 , phosphorus concentration of 0 to 100 mg / l phosphorus-containing wastewater have good results . Actual water treatment visits , the overall dissolved P were maintained at between 85% -90% , the overall removal efficiency of TP maintained at between 60% -80% , and achieved satisfactory results , with good significance in practical applications .

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CLC: > Environmental science, safety science > Environmental pollution and its prevention > Water pollution and its control
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