Municipal sludge refers to the solid, semi-solid, and liquid waste generated by municipal sewage treatment plants, which contains a large amount of organic matter, heavy metals, and pathogenic bacteria. If discharged directly without treatment, it will cause serious pollution to the environment. In recent years, the country has attached great importance to the important role of sludge treatment and disposal in the construction of ecological civilization and the development of environmental protection industry. A series of policy documents have been issued, such as the "Opinions on Comprehensively Promoting the Construction of a Beautiful China", the "Implementation Plan for Promoting the Construction and Management of Domestic Sewage and Garbage Treatment Facilities in Established Towns", and the "Guiding Opinions on Promoting the Utilization of Sewage Resources", etc., which clarify the goals and requirements of harmless treatment, resource utilization, and reduced disposal of sludge.
NCS Intelligent Molecular Membrane
Solution for Resource Utilization of Municipal Sludge
In today's accelerating urbanization process, the treatment and utilization of sludge have become important issues for environmental protection and resource recycling. Traditional sludge treatment methods often have high costs, low efficiency, and are difficult to achieve maximum resource utilization. With the advancement and innovation of technology, in Shandong province, Qingdao Zhonghai Environment has transformed municipal sludge into "nutrient soil" through the NCS intelligent molecular membrane fermentation system, which has the advantages of low cost and high return, achieving a virtuous cycle of returning to nature.
Project Introduction
Project Name: Shandong Municipal Sludge Treatment Project
Composting fermentation technology: NCS intelligent molecular membrane fermentation system
Equipment specification: 300m ³ x 1 set
Fermentation raw material: municipal sludge
Fermentation auxiliary materials: rice husks, dead branches and leaves
Fermentation cycle: about 20 days
Feed moisture content: 60% -80%
Discharge moisture content: 30% -40%
Final product: Nutritious soil
NCS Intelligent Molecular Membrane Fermentation System
The NCS intelligent molecular membrane fermentation system is an innovative equipment that combines molecular nano membrane technology with high-temperature aerobic fermentation technology. The microporous structure of the molecular membrane in the membrane covering material can prevent the emission of large molecular substances such as odor generated during the composting process through the membrane to the external environment, ensure the emission of water vapor, and avoid the impact of external environmental changes such as rain and snow on the composting process, achieving outdoor fermentation and environmental protection without odor.
Mixing municipal sludge with rice husks, dead branches and leaves
Zhonghai Environment has many years of experience in frontline fermentation, collecting and mixing municipal sludge with auxiliary materials such as rice husks and fallen leaves. Professional technicians adjust the moisture and carbon nitrogen ratio of the materials in proportion to ensure fermentation efficiency. In addition, the NCS intelligent molecular membrane fermentation system also has automated operation functions, scientifically controls fermentation parameters, ensures suitable stack temperature, greatly reduces manual intervention and operational difficulty, and improves production efficiency.
Transport fermented materials to the fermentation tank
Perform film covering fermentation
Compared with traditional sludge treatment methods, the NCS intelligent molecular membrane fermentation system used in this project has significant advantages. It can not only reduce processing costs, but also effectively reduce odor emissions and improve the working environment. Meanwhile, this technology also has the characteristics of short processing cycle and high product quality, providing a feasible solution for the resource utilization of municipal sludge.
Nutritious soil processing production line
After a specific fermentation cycle, the nutrient soil is sieved, crushed, and packaged into commercial nutrient soil for the maintenance and planting of small flowers and plants in households, as well as for the greening of streets and gardens. Harmful substances in nutrient rich soil are efficiently eliminated while retaining appropriate amounts of organic matter and microorganisms, providing plants with abundant nutrients and water, promoting root development, and thus improving plant growth rate and quality.
With the acceleration of urbanization, municipal sludge treatment has become an important part of urban environmental governance. Qingdao Zhonghai Environment, with its leading advantage in environmental protection technology and rich practical experience, will provide efficient and environmentally friendly sludge treatment solutions for more cities, helping them achieve sustainable development.
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