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Process for purifying bath sewage

A technology for wastewater purification and bath water, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of non-compliance with drinking water hygiene standards, water turbidity, affecting adsorption and filtration Effect and other issues

Inactive Publication Date: 2002-04-10
张今心
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  • Description
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Problems solved by technology

However, because bathing wastewater contains a large number of very light suspended particles and colloidal particles, the surface of which is charged with adsorbed ions, repels each other to form colloids, and many water molecules are attracted to form a hydration film around the colloidal particles, preventing It prevents the colloidal particles from neutralizing the oppositely charged ions, and prevents the particles from approaching and agglomerating to sink. These particles are difficult to separate from the water by natural precipitation. At this time, if it is the same as the existing purification method, it can be used directly The air flotation method can only make some particles in the bathing wastewater rise with the air bubbles, while most of the tiny particles still exist in the wastewater, which will directly affect the subsequent adsorption and filtration effects, and make the purified water turbid; and because the existing There is only one adsorption treatment in the purification method, and the purified water still contains soluble organic matter and inorganic matter. Although it can be used for circular bathing, it does not meet the hygienic standards for drinking water.

Method used

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  • Process for purifying bath sewage
  • Process for purifying bath sewage

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Embodiment Construction

[0011] Such as figure 1 As shown, wastewater filtration is to make the wastewater after bathing enter the hair filter through the sewer, filter out hair, blades, wet cream, soap flakes and other sundries, enter the sump, and mix with flocculant (Al 2 o 3 Polymer) mixed, pressurized by the water pump, jet storm into the flocculation reaction tank, fully condensed after three deflections, and complete the flocculation treatment; after the flocculation treatment, enter the air flotation tank for air flotation; after the air flotation, use the slag scraper to remove The scum is scraped into the slag pool, that is, solid-liquid separation; part of the water after solid-liquid separation is returned to the air flotation step, and becomes dissolved air water after passing through the dissolved air generator, and air flotation is carried out on the flocculated flocculated water; the other part of the water is mixed with After the adsorbent and filter aid are mixed, the filter pump en...

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Abstract

A process for cleaning the used bath water includes filter, flocculating, air floating, solid-liquid separation, adsorption and filtering again. Its advantage is high cleaning effect.

Description

1. Technical field [0001] The invention relates to a method for purifying domestic wastewater, in particular to a method for purifying bathing wastewater that can make bathing water recycled. 2. Background technology [0002] At present, there are many methods and equipment for purifying bathing wastewater, so that the wastewater after bathing can be reused to achieve the purpose of saving water. For example, the utility model patent "air flotation purifier" with the publication number CN-2154258Y, the utility model patent "package type bath wastewater purification, purification and reuse device" with the announcement number CN-2310611Y, etc., and the closest to the present invention The existing technology is the patent No. 88105013 invention patent "method and device for purifying bath water". The method is to use low-pressure air flotation and balanced overflow to pump the suspended solids and part of the sewage in the bath into the air flotation tank, and then air again....

Claims

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Application Information

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IPC IPC(8): C02F9/02C02F9/04
Inventor 张今心
Owner 张今心
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