1. Process principle of sewage treatment filter press:
wastewater treatment filter press is a solid-liquid separation equipment driven by pressure, and its main process principle is as follows:
Feeding: After pretreatment, sewage is fed into the feed system of the filter press. The feeding system includes a feed pipe, a regulating valve and a feeding device. Through proper control, the sewage is evenly injected into the filter medium of the filter press.
Filtration: Sewage flows through the filter medium in the feed pipe, and the solid particles in it are retained on the filter medium, while the liquid part passes through the filter medium and enters the collection system. The filter medium usually uses multi-layer filter cloth or filter plate with a certain porosity and filtration accuracy.
Pressure drive: In order to achieve solid-liquid separation, the filter press applies a certain pressure to force the liquid in the sewage to pass through the filter medium, and the solid particles gradually accumulate on the filter medium to form a filter cake. Common pressure drive methods include compressed air, hydraulic and mechanical drive.
Separation: During the filtration process, solid particles gradually accumulate to form a filter cake. When the thickness of the filter cake reaches a certain level, the feeding stops and the separation operation begins. The separation operation includes steps such as pressing and washing, and the liquid in the sewage is separated from the filter cake by further applying pressure or spraying clean water.
Solid discharge: The separated solid filter cake passes through the discharge system of the filter press and is discharged from the equipment for treatment or disposal. The discharge of solids usually requires subsequent treatment, such as drying, incineration or landfill, to reduce the impact on the environment.
2. Application scope of sewage treatment filter press:
Sewage treatment filter press has a wide range of applications, covering many fields. The following are the main application scopes of sewage treatment filter press:
Municipal sewage treatment: Sewage treatment filter press is widely used in municipal sewage treatment plants. It can effectively treat urban sewage, remove suspended matter, particulate matter and organic matter, make sewage meet discharge standards, and protect the environment and water resources.
Industrial wastewater treatment: The wastewater generated in various industrial production processes contains different pollutants, such as suspended matter, heavy metals, organic matter, etc. The sewage treatment filter press can efficiently remove solid particles and organic matter in the wastewater through the process of solid-liquid separation, thereby purifying the wastewater and reducing the impact on the environment.
Food processing industry: The wastewater generated by the food processing industry contains a large amount of organic matter and suspended matter, which needs to be treated before it can be discharged or reused. The sewage treatment filter press can effectively remove solid particles and organic matter in the wastewater, improve the treatment effect of the wastewater, and ensure compliance with relevant standards.
Textile and printing and dyeing industry: The wastewater in the textile and printing and dyeing industry contains a large amount of harmful substances such as dyes, auxiliaries and suspended matter, which need to be treated before it can be safely discharged. The sewage treatment filter press has a good solid-liquid separation effect, which can efficiently remove harmful substances in wastewater and protect water sources and the environment.
Chemical and pharmaceutical industries: The wastewater in the chemical and pharmaceutical industries contains various pollutants such as organic compounds, heavy metals and suspended solids, which pose a potential threat to the environment and human health. The sewage treatment filter press can effectively remove pollutants in the wastewater through the process of solid-liquid separation, so that the wastewater can be effectively treated and purified.
Mining and metallurgical industries: The wastewater in the mining and metallurgical industries contains a large amount of solid particles, heavy metals and acidic and alkaline substances, which cause serious pollution to water bodies and soil. The sewage treatment filter press can separate the solid and liquid of the wastewater, remove pollutants such as solid particles and heavy metals in the wastewater, and reduce the impact on the environment.
Aquaculture: Aquaculture wastewater contains a large amount of organic matter such as feed residues, feces and aquaculture waste, which poses a threat to water quality and ecological environment. Through the solid-liquid separation process, the sewage treatment filter press can effectively remove organic matter and solid particles in the wastewater, improve water quality and reduce the impact on the water ecology.
Construction sites and construction sites: The wastewater generated by construction sites and construction sites contains a large amount of solid particles such as mud, concrete residues and construction waste, which need to be effectively treated. The sewage treatment filter press can quickly separate solids and liquids so that the wastewater can be safely discharged or reused after purification.
Sewage treatment filter presses are widely used in municipal sewage treatment, industrial wastewater treatment filter press, food processing, textile printing and dyeing, chemical pharmaceuticals, mining and metallurgy, aquaculture, and construction sites. Its process principle is based on pressure-driven solid-liquid separation, which achieves the goal of wastewater purification and environmental protection by removing solid particles, organic matter and pollutants in wastewater. With the improvement of environmental awareness and the strict requirements of regulations and standards, the application of sewage treatment filter presses in various fields will be further expanded to promote sustainable development and ecological protection.
Post time: 2024-09-07 18:04:37