Papermaking wastewater treating agent

A technology for wastewater treatment agent and papermaking wastewater, applied in energy wastewater treatment, adsorption water/sewage treatment, other chemical processes, etc., can solve the problems of poor chemical treatment effect, slow sedimentation speed, equipment corrosion, etc. Low processing cost and wide-ranging effects

Inactive Publication Date: 2013-03-13
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of poor chemical treatment effect, slow settling speed, high cost and severe corrosion of equipm

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0014] Mechanically crush attapulgite into particles with a particle size of 1.0 mm, soak in 2M sodium hydroxide for 6 hours, wash with dilute hydrochloric acid solution until neutral, and dry in a constant temperature (105°C) oven; place in SRJX-2 -9-type box-type resistance furnace for thermal activation for 3 hours, the activation temperature is 800 ° C, after completion, it is made into 10% metal iron ions, and 2% metal copper ions are added; using WF-4000 microwave fast reactor, at 120Hz, At 90°C, add 2% octadecyltrimethylammonium bromide to modify attapulgite with microwave organic matter, and the modified attapulgite is centrifuged at high speed, washed and dried; the modified attapulgite is used as a filler , placed in the adsorption tower, adjust the pH value of the wastewater to 6.5, the wastewater passes through at a flow rate of 10L / min, the COD concentration in the effluent water is reduced from 612mg / L to 48.96mg / L, and the removal rate reaches 92%, reaching the i...

example 2

[0016] Mechanically crush attapulgite into particles with a particle size of 1.5 mm, soak in 2M sodium hydroxide for 6 hours, wash with dilute hydrochloric acid solution until neutral, and dry in a constant temperature (105°C) oven; place in SRJX-2 -9-type box-type resistance furnace for thermal activation for 3.5 hours, the activation temperature is 800 ° C, after completion, it is made into 10% metal iron ions, and 2% metal copper ions are added; using WF-4000 microwave fast reactor, at 120Hz , 90 ℃, adding 2% octadecyltrimethylammonium bromide to modify attapulgite with microwave organic matter, the modified attapulgite is subjected to high-speed centrifugation, washing, and drying; the modified attapulgite is used as The filler is placed in the adsorption tower to adjust the pH value of the wastewater to 7.0, and the wastewater passes through at a flow rate of 13L / min. The COD concentration in the effluent water is reduced from 1000mg / L to 50mg / L, and the removal rate reach...

example 3

[0018] Mechanically crush attapulgite into particles with a particle size of 1.2 mm, soak in 2M sodium hydroxide for 6 hours, wash with dilute hydrochloric acid solution until neutral, and dry in a constant temperature (105°C) oven; place in SRJX-2 -9-type box-type resistance furnace for thermal activation for 4 hours, the activation temperature is 800 ° C, after completion, it is made into 10% metal iron ions, and 2% metal copper ions are added; using WF-4000 microwave fast reactor, at 120Hz, At 90°C, add 2% octadecyltrimethylammonium bromide to modify attapulgite with microwave organic matter, and the modified attapulgite is centrifuged at high speed, washed and dried; the modified attapulgite is used as a filler , placed in the adsorption tower, adjust the pH value of the wastewater to 7.5, the wastewater passes through at a flow rate of 15L / min, the COD concentration in the effluent water is reduced from 1520mg / L to 45.6mg / L, and the removal rate reaches 97%, reaching the i...

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PUM

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Abstract

The invention discloses a papermaking wastewater treating agent, which belongs to the technical field of wastewater treatment. The treating agent is prepared by the steps of adding metal catalyzed ions to attapulgite and then modifying the metal catalyzed ions. The attapulgite is taken as a packing after being modified and is placed in an adsorption tower to adjust the pH value of wastewater to 6.5-7.5, the wastewater passes through the adsorption tower at a flow speed of 10-15 L/min, and the COD (Chemical Oxygen Demand) of effluent can reach an industrial emission standard. The treating agent has the advantages of wide application range, high deposition rate, high effluent quality, low treatment cost, no corrosion effect on a steel structure, no toxicity, no pollution, safe application and the like. The papermaking wastewater treating agent can also be applied to treatment of various wastewater from oil fields, coal mines, textile mills and the like.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and mainly relates to a treatment agent for papermaking wastewater. Background technique [0002] The life elements that all things rely on for survival: water, air, sunlight and magnetic energy, among which water is the most important element. Since ancient times, places with spiritual springs are always blessed with unique blessings, outstanding people and longevity. Today, in an era of developed industry and commerce, society is constantly progressing, technology is changing with each passing day, and people's living standards are also improving, just as people are enjoying the convenience brought by technology! "At the same time, what is hidden behind it is the pollution and destruction of the environment. Among them, the most direct impact in daily life is the serious pollution of water quality. In recent years, the most obvious frenzy for buying mineral water (mountain spring w...

Claims

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Application Information

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IPC IPC(8): B01J20/12B01J20/30C02F1/28
CPCY02W10/37
Inventor 徐炜
Owner CHANGZHOU UNIV
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