How to treat and discharge laundry wastewater?

Laundry wastewater contains surfactants, most of which are first removed by air flotation machine, and then treated by MBR membrane process.

Answer: Hello, if the laundry wastewater is in the city, it can be discharged directly into the sewer pipe, and it will enter the sewage treatment plant for purification, if it is in the countryside, it is generally poured on the side of the road far away from the well or the field.

Laundry wastewater should be treated and discharged centrally, so as to avoid environmental pollution. We should conserve water.

There should be some water that can be reused, so we should make full use of these secondary water sources in our family life. The pure laundry wastewater that can save us a lot should be treated and discharged centrally to avoid environmental pollution. We should conserve water, and some water should be reused, so we should make full use of these secondary water sources in our family life.

It can save us a lot of pure water.

How to deal with some daily necessities for laundry? I think it's going to take advantage of it. It's okay to flush the toilet, and it's good to flush the toilet and mop the floor. This is our precious resource, and to conserve it is to conserve it.

If you are in the city, you can use it to flush the toilet or wash the floor. If it is in the countryside, it is okay to pour it on the flat ground or in the ditch, after all, the family does not have much water for laundry, and nature will digest it by itself. If it is a lot of laundry water, it may need to be treated before discharging.

There is not much laundry wastewater, it doesn't matter, the cost of domestic sewage treatment has been deducted from the tap water bill. At present, the rural areas in China's economically developed areas have also begun to build sewage treatment facilities, and it is not difficult to treat domestic sewage. If it is a cleaning plant, it will build a pool for centralized treatment, I heard that the laundry detergent still contains some chemicals, I am introducing you to ask Zhejiang Leifeng Environmental Protection Enterprise, our unit's sewage discharge is contracted to Leifeng Environmental Protection, you can see if you can solve it.

Washing clothes of domestic wastewater, the first time the water is dirty, just pour it down the sewer, the second time the water can be used to squat to brush the toilet, wash the cloth, the daily water consumption is very large, the savings have to be saved.

In household water and drainage, the toilet is an important place, but there is also a lot of domestic wastewater that does not contain feces that needs to be discharged, such as dishwashers, kitchen sinks, washing machines, showers, saunas, etc. If these facilities are on the ground, they can naturally be drained by gravity artesian and the drainage pipes of the house. However, it is more difficult to have these in the basement, such as the kitchen and laundry room in the basement, which need to be treated by a drainage device called a sewage lifter.

Xi'an Green Standard Water Environment Technology Co., Ltd. is committed to the research and development of sewage treatment and resource utilization technology, and has done a laundry wastewater treatment project in a city cleaning service department in southern Shaanxi, Shaanxi Province in 2015.

Most of the laundry plant wastewater is mainly laundry detergent and liquid detergent, and the wastewater often contains more surfactants, especially linear alkylbenzene sulfonate (LAS) and high concentration of oil, fatty acids, phosphates and other synthetic detergent additives, such as sodium sulfate filler, bleach, enzyme preparations, adhesives, etc., as well as various colors mixed together, so that its appearance is turbid, pH is alkaline, suspended solids content is high, ammonia nitrogen and phosphorus content is relatively high, a large number of laundry detergent foam, CODCR value is high, Wastewater is turbid, sometimes with a very dark color, this kind of wastewater must be pretreated with washing sewage decolorizing agent (decolorization and demulsification agent) before recycling or subsequent other processes to achieve the standard discharge.

When treating this kind of wastewater, firstly, the front-end sewage passes through a fixed grid, removes the larger floating matter in the water, and the supernatant flows into the regulating tank, and the regulating tank is set up to improve the effective volume of the subsequent pool body and reduce the effective burial depth of the whole pool body, and the water quantity and water quality of the sewage are adjusted with the regulating tank; The effluent of the regulating tank is pumped into the coagulation tank, and the decolorization and demulsification agent and polyacrylamide are added to the coagulation tank, and the sewage flows to the hydrolysis acidification tank after removing the suspended solids and surfactants, which can not only remove phosphorus and denitrification but also play a pretreatment role, and enter the contact oxidation tank for biochemical treatment.

It is the most economical to greatly reduce the content of organic matter and color in sewage by decolorizing and demulsifying agent treatment method, and improve its biochemical properties.

The water can be clarified by chemical treatment with chemicals, and then treated by biochemicals.

The content of dissolved COD and BOD in washing sewage is relatively high, so it is advisable to use AO biochemical treatment process for the treatment of washing sewage. a o biochemical treatment process has the following advantages:

1. High sewage treatment efficiency; Low equipment operating costs;

2. The sludge production of the AO process is small, and the sludge expansion will not occur in the equipment.

3. The equipment adopts a o biological treatment process, which is convenient for operation and management, and the organic matter load is high.

4. Compared with other processes, the reaction pool capacity required by the equipment is smaller, which can save the equipment cost.

5. The process of AO method is mature, the sewage process is simple, the management is convenient, the whole sewage treatment equipment except for the filter and the equipment operation room, the rest of the main equipment can be buried in the ground, and the equipment can be planted with lawn greening, which does not occupy a surface area.

How to deal with the sewage of the laundry Hello dear, a large amount of suspended solids, phosphorus, surfactants, and phosphorus contained in the sewage of the laundry room are the main substances that make the water spike hand quality eutrophication. For the suspended solids in the sewage, the problem can be solved by physical methods. It is removed by using a grid or by using activated carbon to conduct electricity.

Soluble hazardous substances such as phosphorus are disposed of through the A2O process. The proposed comprehensive process is as follows: sewage conditioning tank grid anaerobic reactor (playing:

Released phosphoraminia) Code group anoxic reactor (denitrification) Aerobic reactor (nitrification and phosphorus absorption to remove BOD) Sedimentation tank Disinfection tank Exhaust gas can be clearly consulted by professional enterprises in this area, and enterprises will generally freely choose the appropriate treatment process and equipment for sewage water quality.

What kind of pollution is the wastewater discharged from laundry, vegetable washing, and bathing?

These belong to domestic wastewater. For example, laundry wastewater, which contains detergent, will cause pollution to the outside world if it is discharged directly, so it must be treated.

Some sewage treatment plants are scattered to treat these waste landscapes. Other wastewater includes industrial wastewater, other domestic wastewater, etc.

What kind of pollution is the wastewater discharged from laundry, vegetable washing, and bathing?

Municipal domestic sewage.

Step 1: Pretreatment. Grid filtration, water quality and quantity adjustment, chemical precipitation, floating, oil separation and other methods can be used to carry out preliminary purification treatment of fertilizer plant wastewater, with the purpose of separating suspended solids, colloids, oil slicks, heavy oil and other impurities in the water.

After pretreatment, the large matrix particles in the wastewater, such as suspended solids, grease and other substances, are basically cleaned up.

Step 2: Biological purification. The biological method is used to purify the ammonia nitrogen wastewater of the fertilizer plant, which is to use the degradation effect of microorganisms, which can biochemically degrade the organic dissolved substances and colloidal substances in the wastewater, which can effectively reduce the ammonia nitrogen content and COD content in the water.

The wastewater water quality after biochemical treatment can basically be discharged up to the standard, and the sludge at the bottom of the reaction tank can be added to Xijie ammonia nitrogen remover.

Step 3: Deep purification. Most of the technologies used are activated carbon adsorption method, ozone oxidation method, ion exchange method, membrane separation method, etc., the purpose is to reduce the COD content and color in the wastewater, adsorb the odor and odor in the water, as well as some organic pollutants and dissolved inorganic pollutants that are difficult to be degraded by microorganisms, and completely purify the wastewater up to the standard.

Laundry wastewater contains a large amount of suspended solids, phosphorus, surfactants, and phosphorus, which are the main substances that eutrophicate the water quality. For the suspended solids in the sewage, it can be solved by physical methods. It is removed by means of a grid or by adsorption of activated carbon.

Soluble harmful substances such as phosphorus are treated through the A2O process. The recommended synthesis process is as follows:

Sewage Regulating Tank Grid Anaerobic Reactor (Function: Release of Phosphorus Ammonia) Anoxic Reactor (Nitrogen Removal) Aerobic Reactor (Nitrification Absorption of Phosphorus Removal BOD) Sedimentation Tank Disinfection Tank Discharge.

You can consult professional enterprises in this area, and enterprises will generally choose the appropriate treatment process and equipment for sewage water quality.

If the residential area is equipped with complete sewage treatment equipment, the domestic sewage of the residents will be discharged into the sewage pipe network.

The basic process is:

1. Grid pool (isolate large debris and floating objects in the incoming water, and at the same time make the larger particles in the incoming water settle down here).

2. Regulating pool (adjusting the water volume and balancing the water quality. Improve the impact load resistance of the system. 3. Regulating pool (water purification equipment).

4. Ecological pool (can be used as an effective supplement to the integrated sewage treatment equipment and advanced treatment of the effluent of the integrated sewage treatment equipment).

5.Equipment room (including blower and aerator) to prevent water from flowing and smelling.