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Sludge solar enhanced biological treatment process and device

A technology of biological enhancement and treatment process, which is applied in the direction of sludge treatment, sludge treatment, biological sludge treatment, etc., can solve the problems of insufficient sludge reduction capacity, etc., to improve the heating rate, operation stability, and treatment time Short, small footprint effect

Inactive Publication Date: 2016-02-03
BEIJING GEOENVIRON ENG & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the sludge reduction capacity of sewage treatment plants is seriously insufficient, so there is an urgent need for a sludge reduction and recycling treatment process to ensure that the sludge generated by sewage treatment plants meets the requirements of regional planning through disposal

Method used

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  • Sludge solar enhanced biological treatment process and device
  • Sludge solar enhanced biological treatment process and device
  • Sludge solar enhanced biological treatment process and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Take 30 tons of dewatered sludge with a water content less than 80% from the urban sewage treatment plant and transport it to the raw sludge storage bin by transport vehicle, and transport it to the mixing mixer through a screw conveyor (or loading vehicle), and conditioner (bran, bran, Sawdust), aerobic biological agent (the aerobic biological agent that can oxidize and decompose the sludge includes thermophilic fungi and thermophilic actinomycetes, etc.) are mixed and prepared, and the dosage rate of the conditioner is mixed After 10% of the total amount, the amount of aerobic biological agent added is 100 kg, and the moisture content of the sludge after deployment is 70%.

[0045] After the raw material sludge, conditioner and bacterial agent are evenly mixed, they are transported to the solar bioaugmentation treatment system for bioaugmentation-assisted solar drying treatment. In the high-temperature gel-breaking area, the size of the mixed sludge pile is 12m in len...

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Abstract

The invention discloses a sludge solar enhanced biological treatment process and device. The process includes the steps as follows: 1) mixing dewatered sludge of moisture content below 80%, a conditioner and an aerobic biological agent for oxidative decomposition of sludge in a raw material mixing and blending system, and adjusting the sludge moisture content to below 70%; 2) sending the mixture obtained in the step 1) to a solar enhanced biological treatment system, and reducing the moisture content to below 40%; and 3) sending the mixture obtained in the step 2) into a crushing and screening system for fermentation, and grading the sludge. The sludge solar enhanced biological treatment process conducts treatment on residual sludge generated in a sewage plant, and meets the environmental requirements of the country or region planning.

Description

technical field [0001] The invention relates to a sludge solar biointensification treatment process and device. Background technique [0002] Sludge is the product formed by the adsorption, transfer or precipitation of suspended solids in sewage during the process of purifying sewage in urban sewage treatment plants. According to estimates, the amount of sludge (dry weight) discharged by urban sewage treatment plants in my country is about 9 million tons per year, accounting for 3.2% of the total solid waste in my country, and the annual growth rate is greater than 10%. At present, the sludge reduction capacity of sewage treatment plants is seriously insufficient, so there is an urgent need for a treatment process for sludge reduction and resource utilization to ensure that the sludge generated by sewage treatment plants meets the requirements of regional planning through disposal. Contents of the invention [0003] The technical problem to be solved by the present invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/02C02F11/12C02F11/00
CPCY02W10/20Y02W10/37
Inventor 李骎马文臣甄胜利刘冬何艳君
Owner BEIJING GEOENVIRON ENG & TECH
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