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A high-efficiency compact coupled water treatment device and its treatment method

A treatment device, compact technology, applied in the field of water treatment, to achieve the effect of saving costs, reducing dosage, and shortening the construction period

Active Publication Date: 2016-04-06
PACIFIC WATER TREATMENT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report on the application of the dense medium coagulation sedimentation and magnetic ion exchange resin coupling process device in water treatment.

Method used

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  • A high-efficiency compact coupled water treatment device and its treatment method
  • A high-efficiency compact coupled water treatment device and its treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Table 1: Effluent water quality or removal rate of high-efficiency compact coupled water treatment plant

[0045]

[0046] The raw water samples were taken from the sampling port of a waterworks in the lower reaches of the Yangtze River, and the above-mentioned compact coupling water treatment device was used to operate under the following optimal process conditions: during the coagulation and sedimentation of heavy media, polyaluminum chloride (PAC) was first added to a concentration of 8mg / L (polymerized AlCl in liquid 3 Calculated, ρ=1.24g / ml), after rapid mixing, add polyacrylamide (PAM) to a concentration of 0.1mg / L, add a heavy medium amount of 100mg / L, the whole coagulation and sedimentation process is about 10min, and use a disinfection process For UV disinfection. The dense medium coagulation sedimentation effluent enters the MIEX reactor, and the reactor is equipped with a stirring device. The dosage of MIEX is about 12ml / L, the water flow rate is 800BV, ...

Embodiment 2

[0048] In order to test the treatment effect of the compact coupling water treatment device on metal ions, heavy metal ions such as cadmium and lead were added to the source water of the Yangtze River described in Example 1, and the treatment results of the self-distribution water are shown in Table 2: cadmium in the effluent The concentrations of , lead and chromium ions are <0.0025, <0.004 and <0.008mg / L respectively, all of which meet the national drinking water hygiene standards (GB5749-2006).

[0049] Table 2 Treatment effect on heavy metal ions of high-efficiency compact coupling water treatment device

[0050] .

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Abstract

The invention discloses a high-efficiency compact coupling type water treatment device. The high-efficiency compact coupling type water treatment device is mainly composed of a water inlet pipeline, a sludge tank, a heavy medium coagulation reaction tank, a heavy medium recovery device, a sludge pipe, a rapid sedimentation tank, a magnetic ion exchange resin reaction tank, a NaCl waste solution storage tank, a resin regeneration reactor, a NaCl regenerating solution pipeline, a sterilization system and a water outlet pipeline; the heavy medium coagulation reaction tank comprises a rapid mixing tank, a heavy medium flocculation tank and a digestion tank, the heavy medium recovery device is composed of a high-speed deflocculating machine, a hydrocyclone or / and a magnetic separator, and the resin regeneration reaction refers to an ion exchange process in a highly turbulent NaCl solution ambient. The technological process is short, the treatment speed is high, and the effluent reaches the standard of GB5749-2006. The high-efficiency compact coupling type water treatment device has the characteristics that the land utilization area and the civil engineering cost are saved, strong stability of the water treatment effect is achieved, and heavy mediums and the magnetic ion exchange resin can be recycled.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a high-efficiency compact coupling water treatment device, and also relates to a water treatment method using the high-efficiency compact coupling water treatment device. Background technique [0002] With the process of urbanization and industrialization, the population of cities has increased rapidly, the pollution of water environment has intensified, and the quality standards of drinking water have been continuously improved. The maintenance of quantity and quality has become a double challenge for urban water supply. The expansion and transformation of a large number of urban water supply facilities will be imperative. For this reason, the development of new compact and efficient water treatment processes is clearly imminent. [0003] The dense medium coagulation sedimentation technology achieves the purpose of rapid sedimentation by adding a denser floc core into t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/12
Inventor 杨志宏范青如冯金荣梅从明秦爱冬贾伯林乔春光薛开泉陈莉达云祥施燕张勇
Owner PACIFIC WATER TREATMENT ENG
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