Pipe network type garbage leachate processing device

Abstract

The invention discloses a pipe network type garbage leachate processing device. By processing the garbage leachate by virtue of device, the effluent quality of the leachate is stable, the effluent effect is good, meanwhile, and meanwhile, a pipe network type reverse osmosis membrane is convenient to clean and maintain due to high pollution resistance; and besides, the device further has the characteristics of detachability, simplicity in system mounting and maintenance, small floor area of equipment and strong mobility and has very high popularization and application values when being applied to the garbage leachate processing field.

Description

technical field [0001] The invention relates to a treatment technology for high-concentration organic waste water, in particular to a novel treatment equipment for landfill leachate. Background technique [0002] Landfill leachate is a kind of high-concentration organic wastewater with complex components produced during the landfill process, which mainly comes from the infiltration of precipitation, decomposition of organic matter and the internal water of the garbage itself. Typical landfill leachate contains high concentrations of COD (6000-15000mg / L), ammonia nitrogen (500-3000mg / L), and also contains a large number of microorganisms, heavy metals, inorganic salts, and toxic and harmful substances. Direct discharge can easily lead to groundwater and surface water pollution, which in turn endangers human health. [0003] The nature of landfill leachate is the main basis for choosing a treatment method. At present, landfill leachate treatment methods used at home and abroa...

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Problems solved by technology

Because leachate is different from general domestic sewage, its biodegradability is poor, and it is difficult to meet the treatment requirements if a single treatment process is used, and the treatment cost is high. Therefore, in practical applications, in order to improve the treatment effect and reduce the treatment cost , often requires a combination of multiple methods

[0004] In 2008, the country promulgated the "Pollution Control Standards for Domestic Garbage Landfill Sites" GB16889-2008 instead of the original GB16889-1997, which put forward higher requirements for the discharge limit of water pollution concentration, and the traditional biochemical combination process has been difficult to achieve Water quality requirements, therefore, the current treatment process more adopts the combined process of biochemical + reverse osmosis

Conventional reverse osmosis membrane technology adopts plate type, coil type, spiral wound type and hollow fiber type reverse osmosis devices. These devices are mainly aimed at the purification of seawater and drinking water, while landfill leachate is a typical high-concentration, high-salinity, high-conductivity For sewage with complex components, if the above-mentioned device is used directly, there will be shortcomings such as membrane fouling, fouling, frequent cleaning and even membrane damage.

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