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Process for preparing composite floculating agent of aluminium sulfate and slaked lime

A composite flocculant and slaked lime technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of high cost, complex process, slow processing speed, etc. Effect

Inactive Publication Date: 2006-08-23
LVYE ENVIRONMENT PROTECTION SCI & TECH DEV NANPING CITY
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome a series of problems such as complex process, high cost and slow processing speed of the existing chemical treatment flocculant technology, the purpose of the present invention is to provide a low-cost, neutral, non-toxic, fast and efficient aluminum sulfate, slaked lime Preparation method of composite flocculant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Get 50 kilograms of 100 mesh aluminum sulfate (AS), 35 kilograms of 200 mesh slaked lime (CaOH), 5 kilograms of polyacrylamide (PAM) cations, 5 kilograms of polyacrylamide (PAM) anions; 2 o 5 ) 5 kg.

[0023] A. Mix aluminum sulfate and slaked lime evenly, heat up after reaction and return to room temperature;

[0024] B. Mix polyacrylamide cation and polyacrylamide anion evenly, then add vanadium oxide catalyst and mix evenly;

[0025] C. Mix the mixture of aluminum sulfate and slaked lime in the A process with the polyacrylamide and vanadium oxide mixture in the B process evenly, which is the 100 kg flocculant of the present invention.

Embodiment 2

[0027] Get 55 kilograms of 110 mesh aluminum sulfate (AS), get 30 kilograms of 210 mesh slaked lime (CaOH), 6 kilograms of polyacrylamide (PAM) cation, 6 kilograms of polyacrylamide (PAM) anion; Vanadium oxide (V 2 o 5 ) 3 kg. Among them, 3 kg of activated carbon (C) can be added in the state of high chroma sewage.

[0028] A. Mix aluminum sulfate and slaked lime evenly, heat up after reaction and return to room temperature;

[0029] B. Mix polyacrylamide cation and polyacrylamide anion evenly, then add vanadium oxide catalyst and mix evenly;

[0030] C. Mix the mixture of aluminum sulfate and slaked lime in the A process with the polyacrylamide and vanadium oxide mixture in the B process evenly, which is the 100 kg flocculant of the present invention.

[0031] D. Add another 3 kg of activated carbon to the process mixture of B, and mix it evenly for further decolorization.

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Abstract

The present invention discloses the preparation process of composite flocculant of aluminum sulfate and slaked lime, and belongs to the field of water treating technology in environment protection. The composite flocculant is prepared with aluminum sulfate, slaked lime polyacrylamide and vanadium oxide and through mixing, and may have active carbon added for eliminate high chroma in sewage. The composite flocculant can deposit various kinds of pollutant for separation, and test shows that the composite flocculant has CODcr and BOD5 eliminating rate over 60úÑ, and suspended matter and chroma eliminating rate over 90úÑ.

Description

technical field [0001] The invention relates to the treatment of water pollution in environmental protection, in particular to a preparation method of a neutral, non-toxic, fast and efficient composite flocculant such as aluminum sulfate and slaked lime. Background technique [0002] The "21st Century Agenda" adopted by the United Nations Conference on Environment and Development proposes this common strategy for the sustainable development of mankind. In this strategy, environmental protection is the material basis for sustainable development, and the protection of water resources and the control of water pollution are important links in protecting the environment. The rapid development of the industrial economy, the waste water discharged by industrial and mining enterprises, and the generation of civil construction projects The "environmental hazards" caused by improper treatment of the turbid water and the sewage discharged in human daily life have been constantly derivi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
Inventor 陈扬明
Owner LVYE ENVIRONMENT PROTECTION SCI & TECH DEV NANPING CITY
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