Grease Trap Cleaning
The advantages of grease trap cleaning and septic tank cleaning are that the entire process is mechanized and the operation is effective and does not cause damage to the environment.
The grease trap is a specialized structure used to treat oily wastewater. The petroleum industry and petrochemical industry discharge wastewater containing a large amount of oil during the production process. The coal coking and gasification industry discharges wastewater containing high concentrations of tar. The wool spinning industry and the meat industry discharge wastewater containing a large amount of oil. If these oily wastewaters are discharged into water bodies, they will pollute irrigated farmland, clog soil pores, and harm crop growth. If the oil in wastewater is recycled, it can not only avoid environmental pollution but also obtain considerable economic benefits.
The specific gravity of oil in wastewater is generally much smaller than that of water, and it exists in three states: suspended state, oil particles are larger, and oil beads with a diameter of more than 1 meter float on the water surface and are easy to separate from the water. In the petroleum industry, this type of oil accounts for approximately 50% of the oil content in wastewater. *The dispersed particle size of the oil in the emulsified state is small. The diameter of the oil droplets is less than 1 meter. It is in an emulsified state and is not easy to float and separate from the water. This type of oil accounts for approximately 1% of the oil content in wastewater. *Dissolved petroleum has very little solubility in water. Oils soluble in water account for 50% of the oil content in wastewater. Grease traps are mainly used to separate and remove suspended oil in wastewater, while emulsified oil must be removed by flotation or coagulation sedimentation.
The basic principles of using grease traps and sedimentation tanks to treat wastewater are the same. They use the different proportions of suspended solids and water in wastewater to achieve the purpose of separation. The structure of the grease trap mostly adopts the advection type oily wastewater enters the grease trap with a rectangular plane through the water distribution tank and flows slowly in the horizontal direction. The floating surface of the oil in the flow is pushed to the oil collection pipe by the oil collection pipe or an oil scraper installed on the pool surface. into the dehydration tank. The heavy oil and other impurities that settle in the grease trap accumulate in the sludge hopper at the bottom of the tank and enter the sludge pipe through the sludge discharge pipe. The wastewater treated by oil separation overflows into the drainage channel and out of the pool for subsequent treatment to remove emulsified oil and other pollutants.
Grease traps are mostly constructed of reinforced concrete and may also be constructed of masonry. The rectangular plane is divided into grids along the direction of water flow, and the width of each grid is generally no more than one meter in order to distribute water evenly. The effective water depth does not exceed 1 meter. The length of the grease trap is generally more than twice the width of each grid. Oil traps often use chain-belt oil scrapers and mud scrapers to scrape off floating oil and bottom sludge respectively. Generally, each grid is equipped with a set of oil scrapers and a mud scraper with a sludge bucket. If a baffle is added in the middle of each grid, oil scrapers and mud scrapers are installed on both sides of the baffle, and a sludge bucket is installed, it is called a two-stage grease trap (see the picture), which can improve the oil removal efficiency, but the increase in equipment will increase energy consumption. If a number of inclined plates are added to the grease trap, the oil removal efficiency can also be improved, but the construction investment will be higher. In cold areas, in order to prevent the oil from solidifying in winter, a steam pipe can be installed at the bottom of the oil collection pipe for heating. The grease trap generally needs to be covered and Set up a steam pipe under the cover for thermal insulation to prevent fire in the grease trap and oil volatilization, and to prevent dust and sand from entering.
Vacuum septic suction truck professionally cleans septic tanks, sewage wells cleans grease traps, professionally cleans septic tanks Sewage tank (sewage well) cleaning grease trap (carburizing tank) basement sewage tank and manual excavation of septic tank grease trap sewage well (clearing the bottom of the well) sewage removal and long-term maintenance of septic tank sewage well Management services sincerely invite all major community properties, hotels, restaurants, buildings, schools, hospitals, units and other enterprises and institutions for long-term contract cooperation. Our company will send dedicated personnel for maintenance and management. Over the years, our company has won a wide range of society relying on its strong strength, superior services and preferential prices. We will always adhere to the service tenet of quality first, service first, reputation first and wholeheartedly provide high-quality septic tank oil tank cleaning services to new and old customers from all walks of life.
Toilet unclogging in Zhabei District, Shanghai