Simple treatment device for oily domestic wastewater

Abstract

The invention discloses a simple treatment device for oily domestic wastewater. The simple treatment device for the oily domestic wastewater comprises an oil removal tank, an isolating bar and a collecting box, wherein the oil removal tank is of a square structure with the upward side open, the four sides and the bottom surface of the oil removal tank are built by adopting water-permeable bricks, a sealing cover is arranged above the oil removal tank, a water inlet is formed in the sealing cover, a bilayer support is arranged at the inner side of the oil removal tank, a filter layer is arranged in the bilayer support, the oil removal tank is arranged above the isolating bar, the collecting box is arranged below the isolating bar, an inlet is formed above the collecting box, the side of the inlet of the collecting box is longer than the side of the oil removal tank, and an outlet is formed in the side lower part of the collecting box. The simple treatment device for the oily domestic wastewater is simple in structure and easy to operate, oil droplets and suspended solids can be intercepted by adopting the filter layer, the water-permeable bricks can effectively remove ingredients such as COD and BOD contained in the wastewater, oil removal rate reaches 99%, cost is low, and service life is long.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a simple treatment device for domestic oily wastewater. Background technique [0002] In today's daily life, families, restaurants, cars, and car washes discharge a large amount of oily wastewater every day. This type of wastewater contains a large amount of plant and mineral oils, and also contains starch fibers, proteins, fats, and sediments. According to the conventional sewage treatment process, the treatment of this type of wastewater must have a large site, large facilities, and large investment to implement, but often limited by these conditions, many small and medium-sized enterprises and units cannot directly discharge these oily wastewater, resulting in Environmental pollution, the most troublesome thing is that some unscrupulous operators take out swill oil from hotels, restaurant waste ponds or urban sewers, refine it with local methods, and t...

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Problems solved by technology

[0002] In today's daily life, families, restaurants, cars, and car washes discharge a large amount of oily wastewater every day. This type of wastewater contains a large amount of plant and mineral oils, and also contains starch fibers, proteins, fats, and sediments. According to the conventional sewage treatment process, the treatment of this type of wastewater must have a large site, large facilities, and large investment to implement, but often limited by these conditions, many small and medium-sized enterprises and units cannot directly discharge these oily wastewater, resulting in Environmental pollution, the most troublesome thing is that some unscrupulous operators take out swill oil from hotels, restaurant waste ponds or urban sewers, refine it with local methods, and then sell it to certain food factories on the street or sell it to barbecue stalls and frying stalls etc., which seriously endanger the physical and mental health of the people, so a simple treatment device is needed to remove the oil before the oily wastewater is discharged into the sewer

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