Underground integrated kitchen wastewater treatment equipment

Zhengyuan Environmental Protection Sewage Treatment Equipment Manufacturer, the integrated kitchen and kitchen sewage treatment equipment is highly favored by rural sewage treatment projects due to its highly integrated characteristics, which are suitable for treating small, unstable, and dispersed rural domestic sewage. The equipment integrates biochemical treatment system, membrane treatment system, advanced treatment system, dosing and disinfection system, control system, and power equipment into one, and is a highly integrated sewage treatment device. It has the advantages of stable and reliable technical performance, good treatment effect, compact structure, small footprint, flexible construction method, high degree of automation, and convenient management.

The price of buried integrated kitchen wastewater treatment equipment starts at 6000 yuan, and specific prices need to be quoted by customer service.

Analysis of Water Quality of Kitchen and Kitchen Wastewater

The main components of catering wastewater are leftover food and water, with organic compounds such as starch, food fiber, and animal fat as the main components. It has high nutritional content, high moisture content, high oil and salt content, and is prone to decay, fermentation, and odor. If it is collected, transported, and disposed of together with household waste, it will seriously affect the urban environment and residents' lives, as well as the final disposal effect of household waste. In addition, kitchen waste contains a large amount of organic matter, which is both comprehensive and rich in nutrients. With appropriate treatment technologies, catering wastewater can be fully utilized as a "resource".

Process of buried integrated sewage treatment equipment for kitchen and dining:

1. Pre treatment and wastewater treatment process for catering wastewater: Firstly, mechanical impurity removal is carried out on the catering wastewater directly recovered by restaurants to remove larger impurities such as bones, vegetable leaves, and even cloth strips used for washing, as well as impurities such as starch, protein, sugar, detergent, and colloidal substances. Then perform oil-water separation on the liquid portion. For the oil containing part, acid precipitation and water washing are used to obtain waste oil, and the optimal amount of acid added during the acid precipitation process is to control the pH value between 2-3. After oil-water separation, the water portion is mixed with the washing water and adjusted in the water quality and quantity through a regulating tank. It is then pumped to a coagulation air flotation tank to remove most of the SS, oil, and some organic matter before undergoing biochemical treatment. The biochemical treatment adopts the SBR PACT method, and powdered activated carbon is added to the biochemical tank. The effluent from the biochemical treatment meets the discharge standards; After entering the sludge concentration tank, the sludge is subjected to dewatering treatment. The process flow is shown in Figure 2. In this process, the treatment of wastewater is carried out by a pretreatment system and a biochemical treatment of kitchen waste bacterial culture medium inoculated with fungal honey.

Food and beverage swill - ◆ Oil separation tank or plastic bucket collection in restaurants and hotels - ◆ Rotating mechanical grille - Intelligent oil-water separation system - ◆ Combination tank - ◆ Acid precipitation - ◆ Water washing - ◆ Swill oil - 'Comprehensive utilization sludge concentration tank - ◆ Plate and frame filter press - ◆ Small amount of dry sludge is transported outside

Process flow of oil pretreatment and wastewater treatment for catering wastewater

Pre treatment system: The regulating tank and coagulation air flotation tank mainly stabilize the water quality and quantity, and remove or reduce organic and inorganic substances in the wastewater that affect subsequent biochemical treatment. Due to the low pH value and high oil content of the incoming wastewater, which belongs to acidic wastewater, alkaline neutralization and coagulation gas flotation are used here.

Biochemical processing system:

SBR tank is mainly used to remove dissolved organic substances from wastewater. To enhance the stability and impact resistance of the biochemical treatment system, SBR (sequencing batch reactor) and PAcT (feed activated sludge process) are adopted.

Adding powdered activated carbon to the aeration tank can remove certain dissolved organic compounds that cannot be removed by biochemical methods, and improve the removal efficiency of COD and BOD. Sludge disposal adopts the method of sludge concentration and mechanical dewatering. The supernatant from the concentration tank is sent to the regulating tank for further processing, and the mud cake is transported for further proper disposal.

2. Water regeneration feed technology scheme

Collect hygienic and fresh urban catering wastewater in a centralized manner, first dehydrate and de oil it, then dry and sterilize the solid components, and finally produce solid feed through mechanical processing. The simple process is shown in Figure 3:

Dehydration and degreasing: Catering wastewater is mainly composed of solid and liquid components. In this process, natural precipitation or mechanical filtration is used for solid and liquid separation. The dehydration and oil removal of catering wastewater adopt a relatively simple natural precipitation method, which utilizes the weight and fluidity of the liquid itself, and uses a filter to achieve the separation of solids and liquids. To improve filtration efficiency, layered water filtration can be considered, with the filter mesh increasing from large to small.

Sorting: After dehydration and degreasing, there are still some inedible impurities in the catering wastewater, such as wooden chopsticks, plastic products, metals, paper, etc., which must be removed before processing. The sorting system mainly utilizes the specific gravity, volume, and magnetism of substances, and adopts continuous sorting methods such as repeated mechanization and magnetic separation (with appropriate assistance of magnetic separation, wind separation, and manual sorting for special substances) to separate impurities.

Drying: Microwave heating drying method is chosen here. The advantage of this method is that it can achieve heating effect in a short period of time, with uniform heating, and can kill bacteria at lower temperatures. And it will not produce wastewater, exhaust gas, or waste.

Advantages of buried integrated sewage treatment equipment for kitchen and dining:

1. Save space without occupying surface area

The integrated kitchen and kitchen wastewater treatment equipment can be buried underground, and the surface can be used as green or square land. Therefore, this equipment does not occupy surface area, does not require building, and does not require heating and insulation.

2. Long service life can reach more than 15 years

The integrated kitchen and dining wastewater treatment equipment consists of a pool, steel structure, and shallow burial depth. The steel structure pool adopts the domestically pioneered interpenetrating network anti-corrosion coating for corrosion prevention. It is an interpenetrating polymer formed by the interpenetrating of a rubber network and a plastic network. It is resistant to acid, alkali, salt, gasoline, kerosene, aging, abrasion, and rust. After applying the coating, the anti-corrosion life of the equipment can generally reach more than 15 years.

3. Good decontamination effect and stable effluent quality

The AO biological treatment process in the integrated kitchen and kitchen wastewater treatment equipment adopts a push flow biological contact oxidation tank, which has a better treatment effect than fully mixed or two-stage series fully mixed biological contact oxidation tanks. And it has a smaller volume than activated sludge tanks, strong adaptability to water quality, good impact resistance, stable effluent quality, and will not cause sludge expansion. At the same time, a new type of elastic three-dimensional packing material was used in the biological contact oxidation tank, which has a large actual specific surface area and is convenient for microbial biofilm formation and detachment. Under the same organic load conditions, it has a higher removal rate of organic matter than other packing materials and can improve the solubility of oxygen in water.

4. Less sludge production, discharge once every 90 days

The integrated kitchen and kitchen wastewater treatment equipment adopts a biological contact oxidation tank in the AO biological treatment process, which has a relatively low volume load of the filling material and microorganisms in the self oxidation stage, resulting in less sludge production. In addition, the moisture content of the sludge produced by the biological contact oxidation tank is much lower than that of the sludge produced by the activated sludge tank. Therefore, the amount of sludge generated by the "integrated sewage treatment equipment" is relatively small, and generally only needs to be discharged once every 90 days.

5. Soil deodorization facilities have good deodorization effect

The integrated kitchen and dining wastewater treatment equipment is equipped with soil deodorization facilities. It utilizes reinforced concrete structure to set up improved soil and air distribution pipes in the upper space of the pool body. When odorous components dissolve in the water contained in the soil through the soil layer, they are then transferred into the soil due to surface adsorption and chemical reactions, and ultimately decomposed by microorganisms to achieve deodorization.

6. No need for dedicated personnel to monitor equipment, strong reliability

The integrated kitchen and kitchen wastewater treatment equipment is equipped with a fully automatic electrical control system and equipment damage alarm system. The equipment has good reliability, so there is generally no need for dedicated personnel to manage it, only monthly or quarterly maintenance and upkeep are required.

7. New sound-absorbing materials have low noise levels

In addition to conventional measures such as vibration isolation pads and silencers, the "integrated kitchen and dining wastewater treatment equipment" also uses new sound-absorbing materials on the inner wall of the blower room, reducing the noise level during operation to below 50 decibels and minimizing the impact on the surrounding environment.

The above is an explanation about the underground integrated kitchen sewage treatment equipment. If you need to order, you can contact our customer service and customize it according to your needs.