Phosphorus removal water purifying agent and preparation method thereof

A phosphorus water purifying agent and water purifying agent technology, applied in the field of water purification, can solve the problems of low cost, limitation of sewage phosphorus removal process and treatment effect stability, strong microbial sensitivity, etc., and achieve low cost, ideal adsorption effect, The effect of water environment improvement

Inactive Publication Date: 2016-06-08
HENAN UNIV OF URBAN CONSTR
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Biological phosphorus removal does not require additional chemicals, and the cost is relatively low. Other processes in the sewage treatment process can be used to remove nitrogen and BOD. However, microorganisms are highly sensitive to the environment, and microorganisms need to be strictly controlled during operation. growth conditions, thus limiting the stability of the entire sewage phosphorus removal process and treatment effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0018] A kind of preparation method of phosphorus removal water purifying agent as above, its preparation method is as follows:

[0019] 1) Weigh the above raw materials according to the proportion and mix them evenly, add water during the mixing process, control the moisture content of the wet basis at 18% to 25%, and obtain the mixture after mixing;

[0020] 2) Make the above mixture into sludge particles with a particle size of 0.5mm to 1.5mm, then dry the sludge particles at a drying temperature of 100°C to 110°C, and obtain dried sludge particles after drying;

[0021] 3) The above-mentioned dried sludge particles are baked at 300°C to 900°C for 10min to 60min to finally obtain phosphorus-removed modified sludge.

Embodiment 1

[0022] Example 1: 60 parts of water supply plant sludge, 35 parts of domestic sewage plant sludge and 5 parts of clay were used as raw materials.

[0023] The preparation method is as follows: the sludge from the water supply plant is dried, crushed, and used after sieving; the sludge from the domestic sewage plant is dried, crushed, and sieved before being used; the sludge from the water supply plant, the sludge from the sewage plant, and the clay are stirred in a mixer for 10 minutes, and then added with water , so that the moisture content of the wet basis is 21%, stir evenly, make sludge particles with a particle size of 0.5mm to 1.5mm, dry at 105°C for 1 hour, and bake at 700°C for 30 minutes to obtain the product light phosphorus removal adsorption material.

[0024] In this example, to test the material performance of the product, add a certain amount of high-temperature modified sludge and simulated sewage into the beaker, the total phosphorus concentration in the sewag...

Embodiment 2

[0025] Embodiment 2: raw material adopts 55 parts of water supply plant sludge, 40 parts of domestic sewage plant sludge, 5 parts of clay,

[0026] The preparation method is to crush and sieve the water supply plant sludge; use the domestic sewage plant sludge after crushing and sieving; stir the water supply plant sludge, sewage plant sludge, and clay in a mixer for 10 minutes, add water, and make the wet basis The moisture content is 18%, and after stirring evenly, it is made into sludge particles with a particle size of 0.5mm to 1.5mm, dried at 105°C for 1 hour, and baked at 800°C for 20 minutes to obtain the product light phosphorus removal adsorption material.

[0027] In this example, to test the material performance of the product, add a certain amount of high-temperature modified sludge and simulated sewage into the beaker, the total phosphorus concentration in the sewage is 3mg / L, the use solution is 1L, and the dosage of the adsorbent is 10g . Through the full conta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to a phosphorus removal water purifying agent and a preparation method thereof. The phosphorus removal water purifying agent is prepared from the following raw materials in parts by weight: 50 to 60 parts of water supply plant aluminium sludge with the particle size of less than 0.15 mm, 35 to 45 parts of sewage plant residual activated sludge with the particle size of less than 0.15 mm and 5 parts of binder clay. The preparation method comprises the following steps: weighing and uniformly mixing the raw materials in proportion; adding water in a mixing process, wherein the wet basis water content is controlled to be between 18 and 25 percent; mixing to obtain a mixture; granulating the mixture into sludge particles with the particle size of 0.5 to 1.5 mm; drying the sludge particles to obtain dried sludge particles, wherein the drying temperature is between 100 and 110 DEG C; and baking the dried sludge particles for 10 to 60 minutes at the temperature of 300 to 900 DEG C to obtain modified sludge for removing phosphorus finally. The damage to the environment caused by a sludge treatment mode is avoided; the waste treatment cost of a water plant is saved; the cost is low; and the operation is simple and environment-friendly.

Description

technical field [0001] The invention relates to the field of water purification, in particular to a method for treating phosphorus-containing waste water with light porous water purification materials prepared from urban water supply plant sludge and sewage plant sludge as main raw materials, in particular to a phosphorus-removing water purifying agent and its preparation method. Background technique [0002] Conventional drinking water treatment technology generally adopts coagulation, sedimentation, and filtration processes, and the coagulation unit plays a vital role in the entire treatment process. In recent years, low-molecular aluminum sulfate and ferric chloride have been gradually replaced by new aluminum salt coagulants represented by high-molecular polyaluminum chloride. A large amount of sludge is produced in the process of water purification, mainly from sedimentation tank discharge water and Filter backwash drain. At present, the annual output of dewatered slu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/02C02F1/28
CPCB01J20/0248B01J20/0229B01J20/0281B01J20/0288B01J2220/4887C02F1/281C02F1/288C02F2101/105
Inventor 朱新锋殷世强郭一飞杨家宽刘彪汪潇郭雨菲
Owner HENAN UNIV OF URBAN CONSTR
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap