Drinking water deeply purifying method and device

A deep purification, drinking water technology, applied in the field of water treatment, can solve problems such as deterioration of water quality, inability to remove, and inability to remove ammonia nitrogen

Active Publication Date: 2008-07-16
东营工大水环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the ability of ultrafiltration alone to remove dissolved organic matter in water is very limited, especially small molecular weight and easily biodegradable organic matter, which can hardly be removed by ultrafiltration
However, this

Method used

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  • Drinking water deeply purifying method and device

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[0023] Example

[0024] The biological activated carbon filter-ultrafiltration membrane bioreactor as shown in Figure 1 is combined with a deep purification drinking water process to treat a certain micro-polluted source water. The raw water to be treated first enters the biological activated carbon filter 1, which has a hydraulic retention time of 30 minutes and a filter layer thickness of 1.0 m. The filter material is Ningxia ZJ-15 coal-based columnar activated carbon. The filtered water enters the filtered water tank 3 through the outlet valve 2 of the filter, and the backwash valve 4 of the filter is in the closed state at this time. The filtered water is lifted from the filtered water tank 3 by the lift pump 6 to the high-level water tank 7, and then enters the ultrafiltration membrane bioreactor 9 through the constant-level water tank 8 with a hydraulic retention time of 30 minutes. The ultrafiltration membrane module 10 adopts the submerged hollow fiber ultrafiltration membra...

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PUM

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Abstract

The invention discloses an advanced purification method for drinking water and a device thereof. The advanced purification process for drinking water is explored aiming at generally existing micro-polluted source water and the process combines a biological activated carbon filter and an ultrafiltration membrane biological reactor to purify the drinking water in an advanced way. After the raw water being treated enters the biological activated filter first, the particulate matters in the water being partly intercepted; pollutants like organic matters and ammonia nitrogen and so on are partly degraded and the water quality is purified to some degree; load of the ultrafiltration membrane biological reactor is reduced; the water in the filter is discharged into the ultrafiltration membrane biological reactor; the activated sludge in the reactor biologically treats the water from the filter and the pollutants ammonia nitrogen and the organic matters in the water are degraded again; at last, the water after two-level biodegradation is drawn form ultrafiltration membrane component by a draw-suck pump and the remarkable effect of removal of particulate matters as well as interception of two insects, daphnia, red worms, alga, bacteria and even virus of the ultrafiltration membrane can be brought into play.Therefore, the safe and clean drinking water with excellent quality can be prepared.

Description

technical field [0001] The invention belongs to the technical field of water treatment, in particular to a method and a device for deep purification treatment of drinking water through the combined use of a biological activated carbon filter and an ultrafiltration membrane bioreactor. Background technique [0002] Since the protection of water sources has not received enough attention for a long time, drinking water sources are generally polluted, and a large variety of trace organic pollutants that are poisonous to the human body have been found in drinking water, such as carcinogenic, teratogenic, mutagenic substances, and chlorination. Disinfection by-products. Under this background, the ozone-granular activated carbon treatment process was developed, which played a better role in ensuring the quality of drinking water. With the development of water quality detection technology, many new water quality problems have been discovered, such as Giardia and Cryptosporidium (tw...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F1/28C02F3/12B01D61/14B01D65/02
CPCY02W10/10
Inventor 李圭白田家宇杨艳玲李星梁恒陈杰
Owner 东营工大水环境技术有限公司
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