Multifunctional adsorption particles capable of treating industrial organic wastewater with imbalance of nitrogen and phosphorus and preparation method thereof
A technology for organic wastewater and adsorption particles, which is applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve problems such as lack of adsorption materials, and achieve the effect of simple production process and adsorption of organic pollutants
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[0023] 100mL of NH with a concentration of 0.35mol / L 4 HCO 3 solution and 100mL Ca(NO 3 ) 2 Solution, mixed uniformly to obtain mixed solution A; 100mL concentration of 0.35mol / L (NH 4 ) 2 HPO 4 The solution was slowly added dropwise to 200mL mixed solution A under stirring conditions to obtain mixed solution B; add concentrated HNO to mixed solution B dropwise 3 Until clarification, mixed solution C is obtained; the pH value of mixed solution C is adjusted to 3.5 with NaOH solution with a concentration of 0.01mol / L and hydrochloric acid solution with a concentration of 0.01mol / L to obtain mixed solution D; add 100 mL of NH with a concentration of 1.1mol / L 4 Cl aqueous solution, mixed uniformly to obtain mixed solution E; to mixed solution E, adding 50mL concentration of 0.15mol / L calcium potassium ethylenediaminetetraacetic acid solution, mixed uniformly obtained mixed solution F;
[0024] Put 60 mL of urea aqueous solution with a mass fraction of 47% in a water bath a...
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