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Municipal excess sludge biologic drying organic conditioning agent and preparation method thereof

A technology of excess sludge and biological drying, applied in the field of environmental engineering, can solve the problems of large amount of use, low efficiency of biological drying, low utilization efficiency of auxiliary materials, etc., achieve high acid production, realize resource utilization, and increase adsorption capacity Effect

Active Publication Date: 2016-08-10
ENERGY RES INST OF SHANDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention aims at the problems of low utilization efficiency of auxiliary materials, large dosage and low efficiency of biological drying in the process of sludge biological drying; and the waste bacteria residue and furfural residue produced in the production process of cellulase are used as the main matrix to develop a residual sludge The mud bio-drying functional organic conditioner and its preparation method can effectively improve the utilization rate of auxiliary materials while turning waste into treasure, and realize its recycling through recycling, thereby improving the treatment efficiency of sludge, and at the same time inhibiting cellulase The comprehensive utilization and development of fermentation waste bacteria residue and furfural residue provides a new way for the resource utilization of organic solid waste

Method used

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  • Municipal excess sludge biologic drying organic conditioning agent and preparation method thereof
  • Municipal excess sludge biologic drying organic conditioning agent and preparation method thereof
  • Municipal excess sludge biologic drying organic conditioning agent and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0022]Embodiment 1: a kind of preparation method of municipal residual sludge biological drying organic conditioner, it comprises the following steps: (1) preparation of conditioner matrix: the cellulase fermented waste bacteria residue and furfural residue after drying are according to Mix well at a ratio of 0.5:1 by weight, pass through a 10-mesh sieve after crushing, and then put it into the atmosphere furnace. After vacuuming the atmosphere furnace, nitrogen gas is introduced to start low-temperature baking; set the atmosphere furnace at a rate of 10°C / min. The temperature was raised from room temperature to 450°C; maintained at 450°C for 120 minutes; the heating was stopped, and the temperature was naturally lowered to room temperature to obtain the conditioning agent matrix. (2) Preparation of bioaugmentation conditioner matrix: add 0.1 g of Trichoderma aculeatus CGM-10 spore powder with the preservation number CCTCCNo. M 2014001 to 1000 g of the conditioner matrix obtain...

Embodiment 2

[0030] Embodiment 2: the preparation method of municipal residual sludge biological drying organic conditioner, it comprises the following steps: (1) preparation of conditioner matrix: the cellulase fermented waste bacteria residue and furfural residue after drying are divided into parts by weight Mix well at a ratio of 0.8:1, pass through a 10-mesh sieve after being crushed, and then put it into the atmosphere furnace, vacuum the atmosphere furnace and feed nitrogen to start low-temperature baking; set the atmosphere furnace to heat up from room temperature at a rate of 10°C / min to 450° C.; keep for 120 minutes; stop heating, and naturally cool down to room temperature to obtain a conditioner matrix. (2) Preparation of bioaugmentation conditioner matrix: Add 0.5 g of Trichoderma aculeatus CGM-10 spore powder with preservation number CCTCC No. M2014001 to 1000 g of conditioner matrix obtained in step (1), and mix to obtain bioaugmentation The conditioner matrix acts as a micro...

Embodiment 3

[0037] Embodiment 3: municipal residual sludge biological drying organic conditioner and preparation method thereof, it comprises the following steps: (1) preparation of conditioner matrix: the cellulase fermentation waste bacteria residue and furfural residue after drying are weighed The ratio of 1:1 is fully mixed, after being crushed, it is passed through a 10-mesh sieve, and then put into the atmosphere furnace. After vacuuming the atmosphere furnace, nitrogen gas is introduced to start low-temperature baking; the atmosphere furnace is set at a rate of 10°C / min. Raise the temperature to 450° C.; maintain it for 60 minutes; stop heating, and naturally cool down to room temperature to obtain the conditioning agent matrix. (2) Preparation of bioaugmented conditioner matrix: add 1 g of Trichoderma aculeatus CGM-10 spore powder with preservation number CCTCC No. M2014001 to 1000 grams of carbonized material obtained in step (1), and mix to obtain bioaugmented conditioner agent ...

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Abstract

The invention relates to a municipal excess sludge biologic drying organic conditioning agent and a preparation method thereof, and belongs to the technical field of environment engineering. Cellulose fermenting rest waste fungi residues and furfural residues are used as main substrates; after baking and carbonization, polysporus trichoderma conidial powder, iron powder and the like are added; through compounding and briquetting, the materials are prepared into the organic conditioning agents for rest sludge biologic drying. The organic conditioning agent has the beneficial effects of obviously promoting the starting of the sludge biologic drying process, improving the degradation efficiency of partial contaminants in sludge, passivating heavy metal and the like. The prepared organic conditioning agent can be used in the field of municipal excess sludge treatment and disposal.

Description

technical field [0001] The invention relates to a bio-drying organic conditioner for municipal surplus sludge and a preparation method thereof, belonging to the field of environmental engineering. Background technique [0002] With the acceleration of my country's urbanization process and the improvement of environmental quality standards, the amount of sewage treatment has increased year by year. Sludge is the largest by-product in the process of urban sewage treatment, and its production volume is also increasing rapidly. These large quantities of surplus sludge have become more and more serious environmental and social problems and have attracted the attention of the whole society. [0003] Since municipal sludge contains a large amount of water (about 80%), it is not easy to dehydrate, has a large content of organic matter, and is unstable in nature. It must be dehydrated and dried before further treatment and disposal. At present, thermal drying technology is mainly us...

Claims

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Application Information

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IPC IPC(8): C02F11/14C02F11/02C02F11/00
CPCC02F11/00C02F11/006C02F11/02C02F11/14C02F2303/06
Inventor 梁晓辉赵玉晓华栋梁司洪宇张晓东秦超钟统贤
Owner ENERGY RES INST OF SHANDONG ACAD OF SCI
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