Plan for the establishment of purified water plant

Plan for the establishment of purified water plant ­
I pure water and health
Water is not only the source of life, but also a substance with a large content of Zui in the composition of organism Generally, it accounts for 50% - 70% of human body weight The daily water intake of general people is about 2500ml, of which the water in the form of juice liquid is about 1400ml With the improvement of people's requirements for drinking water quality, people have developed from drinking natural water to tap water to drinking mineral water and purified water It is not only because the water source is polluted, but also because of the development of society and the need of improving people's quality of life The purity of purified water is very high It is in the state of "hunger and thirst" It is crystal clear, free of pollutants, bacteria and viruses It removes carcinogens, inorganic minerals and harmful heavy metals, but retains the active oxygen in the water It is the water that becomes the activated water, can activate cells, and has strong immunity and resistance Development and planning Kunming is one of the cities with serious water shortage in China, and the water quality is not good, so there is a large demand for purified water in Kunming Therefore, it has a good market prospect to open a purified water plant Our plan is to build a concentrated residential area in the suburb of Kunming, covering an area of 1500 square meters, with production workshops, office areas and warehouses Production scale: produce 3 cubic meters of purified water per hour, of which 1.5 cubic meters are directly piped to the residents of the community, and the other 1.5 cubic meters are used for barrel supply of the nearby community III drinking water quality standard and inspection standard gb5749-85 drinking water quality standard gb5750-85 drinking water standard inspection method gb3838-88 surface water environmental quality standard GB8537-1995 drinking natural mineral water test method cj3023-93 activated carbon water purifier 4、 Application for establishment of a company: the establishment of a company shall be registered with the city or County Administration for Industry and commerce where the company is located If the registration is approved, a business license shall be issued Private enterprise registration: to apply for the establishment of a private enterprise, it is necessary to register with the county (city) and district administration for Industry and Commerce of the place where the enterprise is located with relevant certificates, and only after the approval and issuance of a business license can the enterprise start business Application for trademark registration: an enterprise or individual business can register a trademark by providing a business license issued by the administrative department for Industry and commerce Application for health license: the producers and operators (large, state-owned, joint venture, limited and joint-stock) applying for health license in Kunming must apply to Kunming Health Bureau; large and individual producers and operators must apply to the local county (city) Health Bureau Government pricing or government guided commodity price and service charge standard approval: for the commodity price and service charge priced by the government, after receiving the report of the operating unit on the formulation and adjustment of the commodity price and service charge requirements, the Municipal Price Bureau shall investigate and analyze the cost of the commodity and charge items that require the formulation and adjustment of the price, and put forward opinions Application for planning permit of * sex construction project: submit application report to the Municipal Urban Planning Bureau.. Application for planning land permit: submit application report to the Municipal Urban Planning Bureau.. Engraving of special seal for contract: when the enterprise is approved by the registration authority to obtain the enterprise legal person license, the registration authority will issue the certificate of the enterprise's official seal The enterprise shall engrave the seal at the printing point approved by the * organ with the certificate Publicize the product quality supervision and inspection results of the enterprise: the enterprise can choose to publicize its product quality to the society, increase the market awareness of the product and accept the supervision of the social product quality V process facilities for purified water production (I) Pre (pre) treatment unit facilities: due to the use of membrane water treatment technology such as reverse osmosis in the production process of purified water, membrane technology has high requirements for the quality of incoming water The purpose of pretreatment is as follows: 1 To prevent pollution on the membrane surface Prevent fouling on the membrane surface 3 Prevent the film from mechanical and chemical damage, so as to maintain good performance and long service life (II) regulating water tank (pool) makes the raw water pause and buffer here, and sets a pressure pump after the regulating pool to ensure the water pressure and quantity required by the water treatment process The adjustment capacity needs to consider the raw water utilization rate of the water treatment system and the change of the water quantity and pressure of the tap water supply Generally, it can be designed as 1.5-2.5 times of the designed water quantity (3) mechanical filter: the filtration of water is a "physical-chemical" process When the water passes through the granular material filter bed, the suspended matter and alternate impurities in the effluent are separated Mechanical filter can be divided into single layer, double layer and multi-layer according to the need Single layer filter material: place filter material on the supporting layer double layer filter material: the filter material is divided into two layers: the upper layer is anthracite and the lower layer is quartz sand Multi layer filter material: the multi-layer filter material has greater pollution interception capacity and adaptability than the general single and double-layer filter materials, and the filtering effect is better The more commonly used is three-layer filter material, and Zui has five layers of filter material The structure of the activated carbon adsorption filter is basically the same as that of the multi-media filter The difference is that there is an active carbon with strong adsorption function inside, which is used to remove the organics that have not been removed after filtration, and absorb the residual chlorine in the water, so that the residual chlorine in the water is less than or equal to 0.1/m3, and the SDI is less than or equal to 4 Characteristics of activated carbon: in the process of activation, the pores formed by lattice bonds of activated carbon form micro pores of various shapes and sizes, thus forming a huge adsorption surface area, so the adsorption capacity is very strong Adsorption mechanism of activated carbon: activated carbon is dechlorinated and simply adsorbed, but catalyzes some chemical reactions on the surface of carbon In other words, this process has both physical and chemical adsorption, which can remove chlorine and chloramines from water 3 Regeneration of activated carbon: the price of activated carbon is expensive Whether the regeneration technology can be solved directly affects the promotion and application of activated carbon water treatment technology and the cost of water treatment At present, most of them are regenerated by high temperature heating High temperature heating regeneration generally needs three stages: I drying stage, II roasting stage, III activation stage, V ion cross softening stage In order to prevent scale formation in membrane treatment, ion exchange resin is needed to soften water in the preparation of pure water pretreatment process 1 Softening principle: sodium ion exchange resin is mainly used to soften the hard water, that is, Na + is used to replace Ca2 + and Mg2 + in the water based on the principle of displacement reaction Take Ca2 + as an example: Ca (HCO3) 2 + 2nar - → Ca + 2nahco3 ­ CaSO4 + 2nar - → car2 + Na2SO4.. From the reaction formula, it can be seen that Ca2 + and Mg2 + in water will sink in the exchanger after being replaced Therefore, the exchanger will fail At this time, salt solution will be used to regenerate the exchanger: Caco2 + 2nacl - → 2nar + CaCl2 + mgr2 + 2nacl - → 2nar + MgCl2... 2 Ion exchange softening process.. I operation.. II backwash.. III regeneration.. IV positive washing - (VI) precision filter It uses shaped filter material to remove fine particles The filter can remove very small colloidal particles, and the turbidity is about 1 degree The middle section treatment of the middle section treatment unit mainly uses membrane separation technology to remove various impurities in the water mainly containing salts Several membrane separation methods are commonly used in the production of purified water: microfiltration, ultrafiltration, reverse osmosis and nanofiltration, electrodialysis The basic principle of reverse osmosis: a membrane with selective solvent permeation function is used to separate the two solutions Due to the different concentration and pressure of solutions on both sides of the membrane, osmosis or reverse osmosis will occur This process is divided into four parts: equilibrium, infiltration, equilibrium infiltration and reverse osmosis III terminal treatment facilities: ozone sterilization 1 Ozone sterilization principle: ozone is extremely unstable at room temperature When it decomposes, it releases new ecological oxygen and has strong oxidation capacity When ozone is transferred to water by a series mixer, bacteria are killed in two seconds The killing of bacteria by ozone is caused by the rupture of cell membrane This process is called cell dissipation, which is under the condition of dissipation Characteristics of ozone sterilization: (1) ozone sterilization is fast, efficient and has a wide range of bacteria (2) compared with other commonly used sterilization methods, ozone sterilization has significant advantages It will not change the physical and chemical properties of water, and will not bring pollution to pure water caused by additives (3) it is suitable for all kinds of water flow, simple operation and convenient use The treated water is clean and transparent without any peculiar smell 3 Ozone sterilization device ozone sterilization device is composed of air compressor, air dryer, air tank, ozone generator, etc ­­ metering and dosing device ­‐ urban tap water - → raw water pump - → multi-media filter - → activated carbon filter Water storage tank ← ozone sterilizer ← precision filter ← - sodium ion exchanger.. ↓ pH regulation.. ↓ pump - → reverse osmosis combined device - → pure water tank - → pump ↓­ finished product ← - barreled production line ← - terminal precision filter ← - ozone sterilizer 6 Design scheme of purified water treatment facility production scale: produce 3 cubic meters of purified water per hour, of which 1.5 cubic meters is used for direct drinking of nearby community pipelines, 1.5 cubic meters is used for barreled supply of slightly distant community, and the following is water treatment system: (1) Original water tank: one 3-cubic-meter water tank is used, and its origin is Beijing Jinxin container Co., Ltd Raw water pump: 1 set of chl-4-40 stainless steel pump, q = 4m3 / small