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Nitrogen and phosphorus removal composite filler and preparation method thereof

A composite filler, nitrogen and phosphorus removal technology, applied in the field of environmental protection and material science, can solve the problems of difficult microbial treatment, high cost of chemical treatment, low plant absorption efficiency, etc., and achieve fast adsorption rate, high safety, strong Adsorptive effect

Inactive Publication Date: 2020-06-23
HUNAN QUANZHIYUAN ENVIRONMENTAL PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, nitrogen and phosphorus removal is a difficult problem in the field of sewage treatment, especially when it is close to reaching the standard, microbial treatment is difficult to meet the standard, plant absorption efficiency is low, the area is large, chemical treatment costs are high, and it is dangerous and easy. produce secondary pollution

Method used

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  • Nitrogen and phosphorus removal composite filler and preparation method thereof
  • Nitrogen and phosphorus removal composite filler and preparation method thereof
  • Nitrogen and phosphorus removal composite filler and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: A nitrogen and phosphorus removal composite filler and its preparation method, the raw material components and quality of the nitrogen and phosphorus removal composite filler are: steel slag powder 25kg; zeolite particles 43kg; pearl expanded rock powder 6kg; clay 12kg; dolomite powder 12kg; porous ball 1.2kg.

[0040] Among them, the particle size of steel slag, expanded pearlite and dolomite is less than 0.15mm, specifically about 0.14mm; the content of montmorillonite in expanded pearlite is about 83%; the clay is clean clay, free of organic matter, humus and other impurities. It is required that after the pearl expanded rock is fired, the volume expansion is about 11 times.

[0041] refer to figure 1 , the particle size of the porous balls is 0.45cm, and the porous balls include stainless steel silk balls 102 . The outer surface of the stainless steel wire ball 102 is covered with a high temperature resistant glass cloth 101, and the high temperature re...

Embodiment 2

[0051] Example 2: A nitrogen and phosphorus removal composite filler and its preparation method, the raw material components and quality of the nitrogen and phosphorus removal composite filler are: steel slag powder 20kg; zeolite particles 40kg; pearl expanded rock powder 5kg; clay 10kg; dolomite powder 10kg; porous ball 1kg.

[0052] Among them, the particle size of steel slag, expanded pearlite and dolomite is less than 0.15mm, specifically about 0.14mm; the content of montmorillonite in expanded pearlite is about 83%; the clay is clean clay, free of organic matter, humus and other impurities. It is required that after the pearl expanded rock is fired, the volume expansion is about 11 times.

[0053] refer to figure 1 , the particle size of the porous balls is 0.45cm, and the porous balls include stainless steel silk balls 102 . The outer surface of the stainless steel wire ball 102 is covered with a high temperature resistant glass cloth 101, and the high temperature resist...

Embodiment 3

[0061] Example 3: A nitrogen and phosphorus removal composite filler and its preparation method. The raw material components and quality of the nitrogen and phosphorus removal composite filler are: steel slag powder 25kg; zeolite particles 43kg; pearl expanded rock powder 6kg; clay 12kg; dolomite powder 12kg.

[0062] Among them, the particle size of steel slag, expanded pearlite and dolomite is less than 0.15mm, specifically about 0.14mm; the content of montmorillonite in expanded pearlite is about 83%; the clay is clean clay, free of organic matter, humus and other impurities. It is required that after the pearl expanded rock is fired, the volume expansion is about 11 times.

[0063] Its preparation method comprises the following steps:

[0064] S1, crushing: steel slag, pearl expanded rock and dolomite are crushed by a crusher respectively, and after passing through a 100-mesh sieve, steel slag powder, pearl expanded rock powder and dolomite powder are obtained; the zeolit...

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Abstract

The invention discloses a nitrogen and phosphorus removal composite filler and a preparation method thereof, which belong to the field of environmental protection and material science, the composite filler comprises the following raw material components by mass: 20-40 parts of steel slag powder; 40 to 60 parts of zeolite particles; 5-10 parts of pearl expansive rock powder; 10 to 15 parts of clay;and 10-20 parts of dolomite dust; the preparation method comprises the following steps: crushing: crushing the steel slag, the pearl expansive rock and the dolomite by virtue of a crusher, and sieving by virtue of a 100-mesh sieve so as to obtain the steel slag powder, the pearl expansive rock powder and the dolomite powder; crushing the zeolite through the crusher and sieved through a 10-mesh sieve, and obtaining the zeolite particles; and performing the steps of weighing, stirring, forming, drying and firing. The product disclosed by the invention has the advantages of high strength, lightweight, porosity and large specific surface area.

Description

technical field [0001] The invention relates to the fields of environmental protection and material science, more specifically, it relates to a nitrogen and phosphorus removal composite filler and a preparation method thereof. Background technique [0002] Sewage treatment refers to the process of purifying sewage to meet the water quality requirements for discharge into a certain water body or for reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering, etc., and it is also increasingly entering the daily life of ordinary people. [0003] At present, nitrogen and phosphorus removal is a difficult problem in the field of sewage treatment, especially when it is close to reaching the standard, microbial treatment is difficult to meet the standard, plant absorption efficiency is low, the area is large, chemical treatment costs are hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00
CPCC02F3/00
Inventor 曹艳华陈耳登段文文
Owner HUNAN QUANZHIYUAN ENVIRONMENTAL PROTECTION SCI & TECH
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