Garbage compression leachate comprehensive waste water treatment device and technological method

Abstract

The invention provides a garbage compression leachate comprehensive waste water treatment device and technological method. The device comprises a grille, a waste water storage tank, an ultrasonic Electro-Fenton reactor, an intermediate water storage tank, an ultrasonic vibration film reactor and a vortex vibration film filtration system, wherein the grille, the waste water storage tank, the ultrasonic Electro-Fenton reactor, the intermediate water storage tank, the ultrasonic vibration film reactor and the vortex vibration film filtration system are sequentially connected. The device further comprises a sludge dewatering drying pool which is connected with a vortex energy-saving heat pump flash evaporator of the vortex vibration film filtration system and provided with a circuit connected with the ultrasonic vibration film reactor. Waste water sequentially flows through the grille, the waste water storage tank, the ultrasonic Electro-Fenton reactor, the intermediate water storage tank, the ultrasonic vibration film reactor and the vortex vibration film filtration system for redox reactions and filtration. The device is high in operability, high in regeneration cycle use rate and low in operation cost.

Description

technical field [0001] The invention relates to the field of comprehensive treatment of garbage wastewater (sewage), in particular to equipment and a process for comprehensive wastewater treatment of garbage press filtrate. Background technique [0002] The treatment technology for press filtrate of domestic waste compression transfer station and UF / NF / RO reverse osmosis membrane concentrate is almost still a "blank" in my country. The research and engineering application of technology and equipment of most professors, engineers and scholars at home and abroad have been invested in the production practice of sanitary waste landfills and waste incineration power plants. Generally speaking, most of the treatment technologies for difficult and high-concentration landfill leachate and membrane concentrates use the combined technology of physical chemistry + A / O biochemistry + double-membrane process, and the treatment effect can basically meet the first-level discharge standards...

AI Technical Summary

Problems solved by technology

The disadvantages of this conventional combination technology are that it occupies a large area, produces more mud, has a high investment ratio, and has serious membrane fouling (SDI<4), and the membrane is easily fouled and clogged. After the membrane is fouled, the membrane water production cannot reach 50% of the design; The system cannot run stably, the consumption of acid, alkali and cleaning chemicals is high, and the power consumption is large, resulting in high operating costs per ton of water

New strong oxidation technologies: such as supercritical oxidation, chemical Fenton, microwave, low-temperature evaporation, steam evaporation, vacuum heat pump flash evaporation, crystallization, centrifugal drying, and pyrolysis incineration are also constantly being researched and tested. Due to the cost of equipment High, high operating cost per ton of water, harsh application conditions (requiring a certain high temperature, high pressure, dosing, PH condition bottleneck), according to the basic national conditions of our country, the technical and economic capabilities of enterprises and institutions, the promotion of new strong oxidation technology difficulty

[0003] Based on the high difficulty and high concentration of landfill leachate, waste compression liquid, membrane concentrate, industrial high-salt and high-COD organic wastewater, high concentration of pollutants, large fluctuations in pollutant concentration, high salt content, high CAD, high ammonia nitrogen, and biodegradability Low (BOD / COD<0.1), low water volume, intermittent production time, and tight land use, it is not suitable to treat this type of wastewater with combined biochemical technology

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