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Purification device and treatment method for PPCPs in drinking water source

A technology of purification device and water source, applied in multi-stage water treatment, water/sewage treatment, water treatment parameter control, etc., can solve problems such as difficulty in directional removal of PPCPs, re-entry of PPCPs into the environment, and limited treatment technology for PPCPs, etc. The effect of treating water sample volume, high practical value, and improving treatment efficiency

Active Publication Date: 2018-03-30
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the treatment technology specifically for PPCPs is limited. The activated sludge method in the traditional water treatment technology, and its improved membrane treatment technology, activated carbon adsorption, etc. can only remove part of the PPCPs, and the secondary pollutants generated by the adsorption may make the PPCPs regenerated. risk of entering the environment
Advanced treatment technologies such as ozone oxidation, Fenton oxidation, and ultraviolet wet catalytic oxidation process (UV-CWOP) have good removal effects on PPCPs. The oxidant is diluted and wasted, the energy consumption is increased, PPCPs are difficult to be removed in a targeted manner, and even the oxidation of PPCPs is insufficient, resulting in the problem of toxic intermediate products

Method used

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  • Purification device and treatment method for PPCPs in drinking water source
  • Purification device and treatment method for PPCPs in drinking water source
  • Purification device and treatment method for PPCPs in drinking water source

Examples

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Effect test

Embodiment 1

[0067] The water sample in a certain reservoir A is treated by the present invention.

[0068] Continuous water intake 50m 3 . Pump the water sample into the first pretreatment tank, filter out the particulate matter, adjust the pH to 7, and the volume of the solid phase extraction device is 5m 3 , the amount of adsorbent used is 100kg, after the solid-phase extraction column packing is pretreated by 2 times the column volume of methanol and pure water, the water sample is pumped into the solid-phase extraction device with a flow rate of 10m 3 / h, the solid-phase extraction column packing completes the adsorption of PPCPs. Then, 1 times the column volume of methanol was used to elute the packing of the solid-phase extraction column, and the eluent then entered the automatic nitrogen blowing device, which was concentrated by nitrogen blowing to reduce the volume of the water sample, and condensed to recover methanol, which was reused in the solid-phase extraction process. Th...

Embodiment 2

[0071] Embodiment two: adopt the present invention to process the water sample in certain reservoir B:

[0072] Continuous water intake 250m 3 . Pump the water sample into the first pretreatment tank, filter out the particulate matter, adjust the pH to 5, and the volume of the solid phase extraction device is 5m 3 , the amount of solid phase extraction column filler used is 150kg. After the column is pretreated by 2 times the column volume of methanol and pure water, the water sample is pumped into the solid phase extraction device with a flow rate of 15m 3 / h, the solid-phase extraction column packing completes the adsorption of PPCPs. Then use 1 times the column volume of methanol to elute the solid phase extraction column packing, and then the eluent enters the automatic nitrogen blowing device, nitrogen blowing and concentration reduces the processing volume, and condenses to recover methanol, which is reused in the solid phase extraction process. The concentrated liqui...

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Abstract

The invention relates to a purification device for PPCPs in a drinking water source. The purification device mainly comprises a water storage tank, a first pretreatment tank, a solid phase extractiondevice, a full-automatic nitrogen blowing device, a reverse extraction tank, a second pretreatment tank, an ultraviolet catalytic oxidation reaction tank, a coagulation flocculation tank and a sedimentation tank which are sequentially connected through a water pump. The purification device further comprises a reagent tank, a control system and an automatic control operation panel. The invention further provides a treatment method for the PPCPS in the drinking water source. The treatment method mainly comprises the steps of pretreatment, solid phase extraction, nitrogen blowing and concentration, reverse extraction, ultraviolet catalytic oxidation, coagulation flocculation, sedimentation and water output. The purification device has the advantages of efficiently concentrating the PPCPs, remarkably reducing the volume of a treated water sample, being mild in reaction, completely degrading the PPCPs in a directional mode, being high in automation degree and the like, and has wide application prospects.

Description

technical field [0001] The invention relates to a water purification device and method, in particular to a purification device and method for chemical substances in water. Background technique [0002] my country is a big producer and consumer of pharmaceutical and personal care products (PPCPs). Usually, after the drug is ingested, only a small part is bioabsorbed and utilized, while the metabolites and most of the undegraded drug (30%-90%) will be excreted. Personal care products enter the water environment through bathing or washing. Qiao Tiejun found in the investigation of water sources in South China that there are various types of PPCPs in water sources and their content is low. After treatment by drinking water plants, the removal rate of PPCPs is 30% to 50%. It can be seen that traditional water treatment technology can remove PPCPs Efficiency is limited. Due to the characteristics of PPCPs manufacturing, a small amount of PPCPs can produce significant effects, s...

Claims

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Application Information

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IPC IPC(8): C02F9/08
CPCC02F9/00C02F2001/007C02F2303/16C02F2303/04C02F2303/02C02F2301/08C02F2209/42C02F2209/08C02F2209/06C02F2209/02C02F1/001C02F1/32C02F1/20C02F1/28C02F1/26C02F1/5281C02F1/66C02F1/725
Inventor 洪棉炜陆钢祝灵妃佘少桦王威
Owner JINAN UNIVERSITY
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