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Water dephosphorization agent and preparation method thereof

A phosphorus removal agent and water body technology, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve the problems of large dosage of phosphorus removal agent, poor phosphorus removal effect, etc. The effect of increasing adsorption activity and reducing input amount

Inactive Publication Date: 2019-07-12
陈建峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a water body phosphorus removal agent and its preparation method in view of the current problem of large dosage of phosphorus removal agent and poor phosphorus removal effect

Method used

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  • Water dephosphorization agent and preparation method thereof
  • Water dephosphorization agent and preparation method thereof

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preparation example Construction

[0023] The preparation method of surfactant is:

[0024] (1) Take capric acid and add toluene at a mass ratio of 1~3:10~15, stir and mix at 20~25°C for 20~30min, then add N,N-dimethyl-1 with 50~60% capric acid mass, 3-Propylenediamine, stirred and mixed at 30~40°C for 1~3h, distilled under reduced pressure, took the reduced pressure distillate and added 1% sodium carbonate solution with a mass fraction of 1~5:10~20, stirred and mixed for 30 ~40min to obtain the stirred mixture, take the stirred mixture and add toluene according to the mass ratio of 2~5:10~15, let it stand for 30~50min, filter with suction, take the suction filter residue and distill under reduced pressure to obtain the vacuum distillate a;

[0025] (2) Take the vacuum distillate a and add acetone at a mass ratio of 1~3:5~10, stir and mix at 25~30°C for 20~40min, then add 1,3- Dibromopropane, stir and mix at 40~50°C for 2~4h, then rotovap, take the residue of rotovap and add 80% ethanol according to the mass r...

Embodiment 1

[0036] The preparation method of surfactant is:

[0037] (1) Take capric acid and add toluene at a mass ratio of 1:10, stir and mix at 20°C for 20 minutes, then add N,N-dimethyl-1,3-propylenediamine containing 50% capric acid mass, and stir at 30°C Mix for 1 hour, distill under reduced pressure, take the reduced-pressure distillate and add 1% sodium carbonate solution with a mass fraction of 1:10, stir and mix for 30 minutes to obtain a stirred mixture, take the stirred mixture and add toluene at a mass ratio of 2:10, statically Set aside for 30 minutes, filter with suction, take the suction filter residue and distill under reduced pressure to obtain the reduced-pressure distillate a;

[0038] (2) Take the vacuum distillate a and add acetone at a mass ratio of 1:5, stir and mix at 25°C for 20 minutes, then add 1,3-dibromopropane with 40% mass of the vacuum distillate a, stir and mix at 40°C for 2 hours , rotary evaporation, take the rotary evaporation residue and add 80% etha...

Embodiment 2

[0049] The preparation method of surfactant is:

[0050] (1) Take capric acid and add toluene at a mass ratio of 3:15, stir and mix at 25°C for 30 minutes, then add N,N-dimethyl-1,3-propylenediamine containing 60% capric acid mass, and stir at 40°C Mix for 3 hours, distill under reduced pressure, take the reduced-pressure distillate and add 1% sodium carbonate solution according to the mass ratio of 5:20, stir and mix for 40 minutes to obtain a stirred mixture, take the stirred mixture and add toluene according to the mass ratio of 5:15, statically Set aside for 50 minutes, filter with suction, and distill the residue under reduced pressure to obtain the reduced-pressure distillate a;

[0051] (2) Take the vacuum distillate a, add acetone at a mass ratio of 3:10, stir and mix at 30°C for 40 minutes, then add 1,3-dibromopropane with a mass ratio of 60% of the vacuum distillate a, and stir and mix at 50°C for 4 hours , rotary evaporation, take the rotary evaporation residue and...

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Abstract

The invention discloses a water dephosphorization agent and a preparation method thereof, and belongs to the field of water treatment. The prepared surfactant forms a compact saturated adsorption layer for organophosphorus, can accommodate more organophosphorus pollutants to enter, increases adsorption activity for organophosphorus, and reduces the input quantity of phosphorus removal agents; a prepared flocculation additive destabilizes and flocculates particles in the system, sedimentation and filtration dehydration are facilitated, so that treatment efficiency of the organophosphorus pollutants is improved, and flocculation efficiency is improved. A prepared catalyst improves catalytic efficiency, reduces the loss of active substances of the phosphorus removal agent and provides a larger specific surface area, catalytic activity reaction sites are increased, phosphorus removal efficiency is improved, the surface of the montmorillonite is changed from hydrophilic to lipophilic and the substances forming the cell wall of bacteria are mostly lipophilic substances, therefore, the water dephosphorization agent has adsorption effect on active bacteria and is antibacterial. The problems of large dosage of phosphorus removal agent and poor phosphorus removal effect at present are solved.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a water body phosphorus removal agent and a preparation method thereof. Background technique [0002] With the increase of human development and utilization of environmental resources and the acceleration of industrial and agricultural production scale, more and more nutrients enter rivers and lakes, resulting in eutrophication of water bodies. Domestic sewage is mainly various detergents and sewage, garbage, feces, etc. used in urban life, and most of them are non-toxic inorganic salts. Domestic sewage contains a lot of nitrogen, phosphorus, sulfur, and many pathogenic bacteria. Especially in recent years, the widespread use of detergents has caused the phosphorus content in domestic sewage to remain high. High phosphorus content in wastewater will cause serious pollution. Water eutrophication caused by water pollution is becoming more and more serious. Water eutrophication will c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/56C02F1/54C02F1/30C02F1/72C02F1/50C02F101/10C02F101/30
CPCC02F1/285C02F1/30C02F1/50C02F1/5263C02F1/54C02F1/56C02F1/725C02F2101/105C02F2101/30C02F2305/023C02F2305/10
Inventor 陈建峰
Owner 陈建峰
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