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Preparation method of sludge derived clean fuel

A clean fuel and biomass fuel technology, applied in the direction of biofuel, fuel, solid fuel, etc., can solve the problems of reducing the efficiency of coal-fired power plants, the risk of dioxin pollutant emissions, and the aggravation of boiler corrosion, so as to increase the gas-water Contact area, easy to popularize and apply, no secondary pollution effect

Active Publication Date: 2021-10-22
SHANGHAI WONENG ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The incineration of sludge mixed with coal for power generation not only reduces the efficiency of coal-fired power plants, but also aggravates the corrosion of boilers, and there is a risk of emission of dioxin pollutants

Method used

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  • Preparation method of sludge derived clean fuel
  • Preparation method of sludge derived clean fuel
  • Preparation method of sludge derived clean fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Refer figure 1 As shown, this embodiment provides a method for preparing sludge derived cleaning fuel, including the steps of:

[0037] S1, pretreatment of sludge sewage, remove the odor of sewage and the heavy metal ions contained in sludge, to obtain sewage A;

[0038] S2, the sewage modified conditioning agent is added to the sewage A after proceeding with step S1, and the mixed uniform is agonized for 2 hours to obtain sewage B;

[0039] Among them, the sewage modified conditioning agent includes component A and component B, sludge A, component A, component B mass ratio of 100: 0.2: 0.1; wherein component A is composed of raw materials of the following weight parts. 5 parts of hypochlorite, 8 servicate, 8 chromate, 20 copper nitrate, 20 copper nitrate, 25 sodium nitrate, component B consist of a weight of the following weight parts: Brassium 3 copies of bacilli, 1 lactobacillus, 1.5 parts of black mausperium;

[0040] S3, in the sewage B obtained in step S2, the ozone m...

Embodiment 2

[0052] Refer figure 1 As shown, this embodiment provides a method for preparing sludge derived cleaning fuel, including the steps of:

[0053] S1, pretreatment of sludge sewage, remove the odor of sewage and the heavy metal ions contained in sludge, to obtain sewage A;

[0054] S2, the sewage modified conditioning agent was added to the obtained sludge A after proceeding with step S1, and the mixed uniform was agonized for 2 hours to obtain sewage B; wherein the sewage modified conditioning agent comprises component a and component B, sewage A. The mass ratio of component A, component B is 100: 1.5: 0.25; wherein the component A is composed of a raw material of the following weight parts: 20 parts of hypochlorite, 20 servicate, chromate 20 35 copper nitrate, 38 nitrates, 41 sodium nitrate, composition B by weight of the following weight parts: 6 parts of Bacillus Bacillus, 4 parts of lactobacter, 5 parts of black mastin;

[0055] S3, in the sewage B obtained in step S2, the ozone ...

Embodiment 3

[0067] Refer figure 1 As shown, this embodiment provides a method for preparing sludge derived cleaning fuel, including the steps of:

[0068] S1, pretreatment of sludge-containing sewage, remove smell of sludge and heavy metal ions in sludge, to obtain sewage A;

[0069] S2, the sewage modified conditioning agent is added to the sewage A after proceeding into step S1, and the mixed uniform is agonized to 1.5 hours to obtain sewage B; where the sewage modified conditioning agent includes component A and component B, sewage A, Component A, component B mass ratio is 100: 0.5: 0.25; wherein the component A is composed of a raw material of the following weight parts: 15 sub-chlorite, 15 parts of diethola, 12 parts of chromate. 20 parts of nitric acid, 29 copies of nitrate, 28 sodium nitrate, composition B by weight of the following weight parts: 4 parts of Bacillus Bacillus, 2 parts of Lactobacillus, 2 parts of Aspergillus;

[0070] S3, in the sewage B obtained in step S2, the ozone m...

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Abstract

The invention discloses a preparation method of a sludge derived clean fuel, which comprises the following steps: S1, pretreating sludge-containing sewage to obtain sewage A; s2, adding a sewage modified conditioner into the sewage A treated in the step S1, uniformly mixing, and aging to obtain sewage B; s3, introducing ozone micro-nano bubbles into the sewage B obtained after treatment in the step S2, meanwhile, subjecting the sewage B into which the ozone micro-nano bubbles to ultrasonic treatment to obtain sewage C; s4, treating the sewage C obtained after treatment in the step S3 through a high-voltage electronic pulse technology and then subjected to mechanical dehydration to prepare sludge; S5, adding an auxiliary fuel into the sludge treated in the step S4, fully stirring and uniformly mixing the materials to obtain a mixed material, naturally drying the mixed material, and carrying out compression molding to obtain the sludge derived clean fuel. The preparation method is simple, secondary pollution is avoided, industrial popularization and application are facilitated, and the combustion performance of main organic matters in the sludge is greatly improved.

Description

Technical field [0001] The present invention relates to the field of sludge treatment, and more particularly to a method of preparing sludge derived cleaning fuel. Background technique [0002] Sludge is the remaining solid waste produced by sewage treatment, which is high and rich in sulfur oxides, heavy metal ions, pathogens, etc., which are extremely harmful to the environment. With the development of social productivity, the annual output of China's sludge is growing year by year, and the stability of sludge, reduction and harmless treatment have become a hot environmental problem. However, the high water content of sludge is an important factor in restricting its resource utilization, while the traditional mechanical dehydration can only reduce the water content of the sludge moisture to 75% to 85%, and the effect is very limited and the treatment efficiency is low. This is mainly because of the microbial polymer (EPS) in sludge, so that the sludge is present in the structur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/02C02F11/121C02F11/143C02F11/145C02F11/15C10L5/46C02F101/20
CPCC02F11/02C02F11/15C02F11/145C02F11/143C02F11/121C10L5/46C02F2303/02C02F2101/20C10L2290/32C10L2290/34C10L2290/08Y02E50/30Y02E50/10
Inventor 毛炳荣毛中元
Owner SHANGHAI WONENG ENVIRONMENTAL PROTECTION TECH