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A system for purifying antibiotics in drinking water from a waterworks

A technology for purifying water plants and drinking water, applied in multi-stage water/sewage treatment, light water/sewage treatment, adsorption water/sewage treatment, etc., can solve problems such as the increase of drug-resistant bacteria, infection, and difficulty in removing antibiotics from drinking water , to achieve the effect of simple and strong response of the degradation device

Active Publication Date: 2021-12-28
湖南城头山矿泉水科研开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Long-term drinking of antibiotic-contaminated water can cause adverse reactions such as gastrointestinal infection and digestive tract flora imbalance, and also lead to the increase of drug-resistant bacteria in the human body
[0003] At present, the conventional process of water works includes coagulation-sedimentation-sand filtration-activated carbon filtration. Although this process can effectively remove organic matter in water, it is difficult to remove antibiotics in drinking water and meet people's drinking water needs. Patent The document (CN201910966483.3) discloses a method using UV / H 2 o 2 Combined method for treating antibiotics in water, but this method requires continuous injection of H 2 o 2 and H 2 o 2 The utilization rate is not high, and it cannot achieve a good removal effect on many types of antibiotics

Method used

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  • A system for purifying antibiotics in drinking water from a waterworks
  • A system for purifying antibiotics in drinking water from a waterworks
  • A system for purifying antibiotics in drinking water from a waterworks

Examples

Experimental program
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Effect test

Embodiment 1

[0031] 1. Preparation of Degradable Gel Bands

[0032] (1) The Bi (NO 3 ) 3 ·5H 2O 18g, Zn(NO 3 ) 2 ·6H 2 O 10g, FeCl 3 7g, NaNO 3 A mixed solution prepared with 1g, HMT 16g, AcOH 2g, and deionized water 250mL, boiled at 105°C, refluxed for 40h, cooled to room temperature, filtered, washed, vacuum freeze-dried at -80°C for 20h, and ground through a 200-mesh sieve to obtain FeZnBi- NO 3 -LDHs powder;

[0033] (2) Under the protection of Ar, FeZnBi-NO 3 - 40 g of LDHs powder was added to 500 mL of formamide, stirred at a speed of 1000 rpm for 7 days, centrifuged at 2500 rpm, and the filtrate was collected to obtain a stripped LDHs colloidal solution;

[0034] (3)N 2 Under the protection, 10 g of N-methyl maleic acid monoamide monomer was weighed and dissolved in 40 mL of deionized water, then 50 g of methyl 2-(hydroxymethyl) acrylate, 300 g of distilled water were added successively, and the solution was fully sonicated for 30 min. Mix evenly, and place it in a bro...

Embodiment 2

[0044] 1. Preparation of Degradable Gel Bands

[0045] (1) The Bi (NO 3 ) 3 ·5H 2 O 19g, Zn(NO 3 ) 2 ·6H 2 O 11g, FeCl 3 7.5g, NaNO 3 A mixed solution prepared with 1.1g, 17g HMT, 2.5g AcOH, and 250-300mL deionized water, boiled at 108°C, refluxed for 44h, cooled to room temperature, filtered, washed, vacuum freeze-dried at -70°C for 22h, ground through a 200-mesh sieve, get FeZnBi-NO 3 -LDHs powder;

[0046] (2) Under the protection of Ar, FeZnBi-NO 3 - 45 g of LDHs powder was added to 550 mL of formamide, stirred at a speed of 1150 rpm for 8 days, centrifuged at 2750 rpm, and the filtrate was collected to obtain a stripped LDHs colloidal solution;

[0047] (3)N 2 Under the protection, 11 g of N-methyl maleic acid monoamide monomer was weighed and dissolved in 45 mL of deionized water, then 55 g of methyl 2-(hydroxymethyl) acrylate and 350 g of distilled water were added successively, and the solution was fully sonicated for 35 min. Mix evenly, and place it in a...

Embodiment 3

[0057] 1. Preparation of Degradable Gel Bands

[0058] (1) The Bi (NO 3 ) 3 ·5H 2 O 20g, Zn(NO 3 ) 2 ·6H 2 O 12g, FeCl 3 8g, NaNO 3 A mixed solution prepared with 1.2g, 18g HMT, 3g AcOH, and 250-300mL deionized water, boiled at 110°C, refluxed for 48h, cooled to room temperature, filtered, washed, vacuum freeze-dried at -60°C for 24h, ground through a 200-mesh sieve, get FeZnBi-NO 3 -LDHs powder;

[0059] (2) Under the protection of Ar, FeZnBi-NO 3 - 50 g of LDHs powder was added to 600 mL of formamide, stirred at a speed of 1300 rpm for 9 days, centrifuged at 3000 rpm, and the filtrate was collected to obtain a stripped LDHs colloidal solution;

[0060] (3)N 2 Under the protection, 12 g of N-methyl maleic acid monoamide monomer was weighed and dissolved in 50 mL of deionized water, and then 60 g of methyl 2-(hydroxymethyl) acrylate, 400 g of distilled water were added successively, and the solution was fully sonicated for 40 min. Mix evenly, and place it in a br...

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PUM

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Abstract

The invention discloses a system for purifying antibiotics in drinking water of a water plant, which comprises a coagulation tank, a sedimentation tank, a sand filter tank, a degradation device and an activated carbon filter device connected in series; Described degradation device, described degradation device is provided with degradation tube, in the degradation tube there are degradation gel band and color-changing light band, and the outer wall of degradation tube has silver mirror attached layer; The silver mirror absorbs and degrades the antibiotics to remove the antibiotics, and then enters the activated carbon filter device; the degraded gel band is compounded by the gel carrier, LDHs and metal ions. The invention uses degradable gel, color-changing light band and silver mirror reflection to adsorb and degrade antibiotics in water. The degraded antibiotics have wide range, high degradation efficiency, fast speed and sustainable effect, and also have disinfection effect.

Description

technical field [0001] The invention relates to the field of water treatment systems, in particular to a system for purifying antibiotics in drinking water in water plants. Background technique [0002] Antibiotics, as a typical PPCPs pollutant, is a type of pollution that has attracted much attention. It has been detected in the surface water of many rivers, lakes and seas in my country, such as the Pearl River in South China, the Yangtze River in Central China, and the Yellow River in North China. According to statistics, my country produces about 210,000 tons of antibiotics every year, of which 42% are used for medical treatment and 48% are used for animal husbandry. In the ecological water environment, more kinds of antibiotics were detected. Antibiotics in the ecological water environment usually enter the human body through drinking water, thereby causing drug resistance in the human body and causing great long-term harm. After antibiotics enter the water environment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/08B01J20/28B01J20/26B01J20/30
CPCC02F9/00B01J20/28047B01J20/28002B01J20/28014B01J20/261C02F1/30C02F1/001C02F2001/007C02F1/28C02F2103/343C02F2303/04
Inventor 朱继强朱翠云
Owner 湖南城头山矿泉水科研开发有限公司