A method for preparing regenerated soil using urban sludge and agricultural and forestry waste
A technology of urban sludge, agriculture and forestry, which is applied in the field of waste treatment, can solve the problems of poor utilization, air pollution, and high investment, and achieve the effects of low production cost, stimulating rapid growth, and increasing porosity
Active Publication Date: 2021-11-05
北京天地丰源环保科技有限公司 +1
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Problems solved by technology
[0002] Sewage is waste in the process of industrial production. Now, with the advancement of large-scale production in my country's industrial industry, environmental protection inspections are becoming more and more stringent. Industrial sewage is basically being recycled, and there are strict discharge standards for those that cannot be used. Each enterprise also has its own In the sewage treatment facilities, the final concentrated mud cake sludge usually needs to be incinerated or landfilled, but it will cost a lot and cannot be well utilized. Sludge can be classified and treated like "garbage classification". my country has already With the basic conditions of "sewage classification", after the sludge is classified, its characteristics can be used to apply it to different aspects with different processes; similarly, incineration of straw in rural areas will cause air pollution, and it needs to be crushed and returned to the field for treatment. Invest manpower and material resources
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[0018] The purpose of this technology is to use the ecological and physical basic structural characteristics and universality of sludge, construction waste, and agricultural and forestry waste to cultivate and create regenerated soil with ecological and engineering functions. On the basis of becoming mature, the soil function research is focused on, emphasizing its solidification and expansion treatment process.
[0019] This technology is not very strict in the selection of sludge, and the use direction of regenerated soil is selected according to the applicable properties of the sludge, and the use direction of regenerated soil is selected according to the "(GB-T23486-2009) Mud for urban sewage treatment plant sludge disposal and landscaping" "(GB-T23486-2009) / T24600-2018) Mud for Land Improvement of Sludge Disposal in Urban Sewage Treatment Plants" and "(GBT 23485-2009) Mud for Mixed Landfill Sludge Disposal in Urban Wastewater Treatment Plants" are applicable to this
[0...
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The invention belongs to the technical field of waste treatment, and specifically relates to a method for preparing regenerated soil by using urban sludge and agricultural and forestry garbage. The sorted sludge is regenerated by a suitable process, and the soil is regenerated with a solidifying agent, a passivating agent, an expanding The combined action of the agent and the sludge planting concrete water storage particles can be obtained, so that waste such as sludge can be better utilized. At the same time, domestic sludge and industrial sludge use different amounts of solidifying agent, passivating agent, and expanding agent, which can better reduce waste. cost.
Description
technical field [0001] The invention belongs to the technical field of waste treatment, in particular to a method for preparing regenerated soil using urban sludge and agricultural and forestry waste. Background technique [0002] Sewage is waste in the process of industrial production. Now, with the advancement of large-scale production in my country's industrial industry, environmental protection inspections are becoming more and more stringent. Industrial sewage is basically being recycled, and there are strict discharge standards for those that cannot be used. Each enterprise also has its own In the sewage treatment facilities, the final concentrated mud cake sludge usually needs to be incinerated or landfilled, but it will cost a lot and cannot be well utilized. Sludge can be classified and treated like "garbage classification". my country has already With the basic conditions of "sewage classification", after the sludge is classified, its characteristics can be used to a...
Claims
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IPC IPC(8): B09B3/00
CPCB09B3/00Y02W30/58
Inventor 田国玉霍燚李静
Owner 北京天地丰源环保科技有限公司