What are the water treatment systems? What is Water Treatment Technology?

Your question is a general one, the current water treatment system is divided according to the type of wastewater, and new research results are born all the time, no one can say what wastewater treatment system there are. I will first introduce some types of wastewater here, and you can check for more details.

Wastewater is broadly divided into three categories:

The first is classified according to the products and processing objects of industrial enterprises, such as metal smelting wastewater, papermaking wastewater, tanning wastewater, metal pickling wastewater, painting wastewater, coking gas wastewater, chemical fertilizer wastewater, textile printing and dyeing wastewater, printing and dyeing wastewater, pesticide wastewater, power station wastewater, etc.

The second is to classify according to the chemical properties of the main pollutants contained in industrial wastewater, inorganic wastewater containing inorganic pollutants, and organic wastewater containing organic pollutants. For example, electroplating wastewater and mineral processing wastewater are inorganic wastewater; Wastewater from food or petroleum processing is organic wastewater.

The third is classified according to the main components of pollutants contained in wastewater, such as acidic wastewater, alkaline wastewater, cyanide-containing wastewater, chromium-containing wastewater, cadmium-containing wastewater, mercury-containing wastewater, phenol-containing wastewater, aldehyde-containing wastewater, oil-containing wastewater, and sulfur-containing waste.

water, wastewater containing organic phosphorus, and radioactive wastewater, etc. The first two classifications do not address the main components of the pollutants contained in the wastewater and do not indicate the hazard of the wastewater. The third classification, on the other hand, clearly indicates the main pollutants in the wastewater.

can indicate a certain hazard of wastewater.

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The water treatment system adopts a 5-level purification device, and the ordinary tap water can be directly quoted after 5-level purification, which is equivalent to mineral water, and can be improved or customized according to the actual situation in different regions.

The filtration water treatment system adopts automatic computer control technology, and adopts insulation and electric shock protection devices, anti-leakage, anti-dry burning, anti-over-temperature, anti-overpressure, anti-steam, anti-overflow, and other multiple safety protection devices.

Water treatment is divided into two treatment methods: physical and chemical, and the physical treatment is mainly precipitation and filtration. The chemical method is to add alum precipitation, add some chemical agents to neutralize, and transform a certain toxic substance to meet the emission standard, and the two methods are often used together.

1. Coagulation and flocculation

Coagulation refers to the addition of a certain dose of chemical agents in water, which are hydrolyzed in water, collide with colloidal particles in water, and electrically neutralize, produce adsorption, bridging and net capture, thus forming large floc particles, and settling from the water, which plays a role in reducing particle suspension and colloids.

2. Media filtration

Media filtration refers to the process of using quartz sand or anthracite as the medium to make the water pass through the bed composed of these media under gravity or pressure, and the particle pollutants in the water are blocked by the medium, so as to achieve separation from the water. Granular media filtration is based on the process of "filtration clarification" to remove particles, suspended solids and colloids from water.

Industrial water treatment.

In industrial water treatment, the task of the pretreatment process is to treat the water source of industrial water - surface water, groundwater or urban tap water to meet the influent water quality indicators allowed by the subsequent water treatment device, so as to ensure the long-term safe and stable operation of the water treatment system and provide high-quality water for industrial production.

The objects of pretreatment are mainly suspended solids, colloids, microorganisms, organic matter, free residual chlorine and heavy metals in water. These impurities can adversely affect water treatment devices such as electrodialysis, ion exchange, reverse osmosis, sodium filtration, etc.

1. The household water treatment system, also known as "water home improvement", is designed through the appropriate position of the water supply pipeline and equipped with relevant water treatment equipment, such as pre-filters, water softeners, water purifiers, water purifiers, direct drinking machines, etc., so as to comprehensively purify household water. The domestic water disposal permeability system includes three parts: water purification system, water softening system and pure water system.

2. The water purification system first effectively removes chlorine, heavy metals, bacteria, viruses, algae and solid suspended solids in the water, and then uses activated carbon to further remove various organic matter, so that the effluent is clear and clean. The water purification is connected to the back end of the pre-filter, and the function of the water purifier is to remove residual chlorine, colloids and impurities, and use activated carbon adsorption and high-purity KDF filter material to achieve water purification.

3. The water softening system replaces calcium and magnesium ions in the water through natural resin, which reduces the hardness of water disturbance, effectively reduces the wear and tear of clothing and equipment, and avoids scaling problems such as pipes, sanitary ware, and bathroom equipment. The water softener is generally connected from the back of the water purifier and connected to the toilet to provide water for bathing and other functions.

4. **The pure water system adopts reverse osmosis method, and the five filtration procedures are precisely calculated to make the effluent become pure water, without any impurities and minerals. The water purifier is connected from the back end of the water purifier and is generally placed in the kitchen or living room. Five-level filtration:

1-stage PP filter - 23-stage GAC activated carbon filter - 4-stage UF ultrafiltration filter - 5-stage water tank ultraviolet sterilization. The Qingyi direct drinking machine does not require electricity, it can be hung on the wall under the counter top, and the faucet can be opened to drink directly.

1. According to the classification of sewage, sewage treatment is generally divided into production sewage treatment and domestic sewage treatment. Production sewage includes industrial sewage, agricultural sewage and medical sewage, etc., while domestic sewage is the sewage produced in daily life, which refers to a complex mixture of various forms of inorganic and organic matter, including: floating and suspended solid particles; gelatinous and gelatinous diffuses; Pure solution.

2. According to the quality of water pollution, there are two types of water pollution: one is natural pollution; The other category is man-made pollution. At present, man-made pollution is more harmful to water bodies.

Water pollution can be divided into three categories: chemical pollution, physical pollution and biological pollution according to the different pollution impurities. The main pollutants are: untreated industrial wastewater; untreated domestic sewage; farmland sewage with a large number of chemical fertilizers, agricultural demolition pesticides, and herbicides; industrial waste and household waste piled up near the river; Soil erosion; Mine sewage.