Solid-liquid separator

A solid-liquid separation and adding device technology, which is applied in the direction of liquid separation, separation method, grease/oily substance/floating matter removal device, etc., can solve the problems of difficult waste, large amount of sludge, etc., to reduce the amount of medicine, The effect of reducing the amount of sludge

Inactive Publication Date: 2010-02-24
KK TOSHIBA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0017] However, in the technology described in Patent Document 1, granular activated carbon is charged in the process before coagulation and sedimentation, so there is a problem that a coagulant is added to the raw water containing granular activated carbon, and chemicals such as coagulants required for coagulation and sedimentation are required. the amount becomes large
Furthermore, in the technology described in Patent Document 1, there is also a problem that granular activated carbon and other floc components contained in the floc settled in the sedimentation tank are discarded, and the amount of generated sludge becomes large, making it difficult to discard.

Method used

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no. 1 Embodiment approach

[0037] use figure 2 The water treatment system 101 provided with the solid-liquid separator 51 of the first embodiment will be described. The solid-liquid separator 51 of the first embodiment includes an activated carbon adding device 10 for adding activated carbon A to raw water to be treated, and a liquid cyclone 20 for separating activated carbon A adsorbing suspended matter in the raw water from the raw water.

[0038] Such as figure 2As shown, the water treatment system 101 is that, in addition to the solid-liquid separation device 51 equipped with the activated carbon addition device 10 and the liquid cyclone 20, it also has: a water intake well 1, which stores the raw water taken from water sources such as rivers, and adds Activated carbon A; collecting well 2, the raw water separated from activated carbon A is supplied from the liquid cyclone 20; the rapid stirring tank 3 is supplied with raw water from the collecting well 2; the first drug adding device 12, the coa...

no. 2 Embodiment approach

[0054] use Figure 4 The water treatment system 102 provided with the solid-liquid separator 52 of the second embodiment will be described. Figure 4 The solid-liquid separator 52 of the second embodiment shown and the use figure 2 Compared with the solid-liquid separation device 51 of the first embodiment described above, the difference is that the solid-liquid separation device 52 of the second embodiment has two activated carbon adding devices 10, 11, and has two liquid cyclones 20, twenty one. Here, the device for adding activated carbon to the water intake well 1 is referred to as the first activated carbon adding device 10 , and the device for adding activated carbon A to the water collection well 2 is referred to as the second activated carbon adding device 11 . Furthermore, the liquid cyclone in the rear stage of the water intake well 1 is the first liquid cyclone 20 , and the liquid cyclone in the rear stage of the water collection well 2 is the second liquid cyclo...

no. 3 Embodiment approach

[0068] use Figure 7 The water treatment system 105 provided with the solid-liquid separator 55 of the third embodiment will be described. Figure 7 The solid-liquid separation device 55 of the third embodiment shown and the use Figure 4 Compared with the water treatment system 102 of the second embodiment 52 described above, the difference is that the solid-liquid separation device 55 of the third embodiment is that the activated carbon discharge pipe 20b that discharges activated carbon from the first liquid cyclone 20 is a circulation pipe. The activated carbon discharge pipe 21b that discharges activated carbon from the second liquid cyclone 21 is connected to the second activated carbon addition device 11 as a circulation line. In addition, in the water treatment system 105 , after the coagulation and sedimentation in the coagulation and sedimentation tank 5 , the same as the water treatment system 101 , the sand filter 7 , the chlorine disinfection device 8 and the wat...

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Abstract

A solid-liquid separator comprising: an activated carbon adder adds activated carbon to raw water before flocculating sedimentation, to adsorb suspended matter contained in raw water, a liquid cycloneis adapted to separate activated carbon with suspended matter adsorbed thereon, from raw water containing activated carbon, an inflow line is connected with the liquid cyclone so as to cause raw water containing activated carbon before flocculating sedimentation to flow into the liquid cyclone and swirl therein, an activated carbon discharge line discharges activated carbon spun down out of raw water containing activated carbon in the liquid cyclone, from the liquid cyclone, and a pretreated water discharge line discharges raw water having got rid of activated carbon as pretreated water fromthe liquid cyclone, allowing for a reduced amount of chemicals to be used, with production of a reduced amount of sludge.

Description

technical field [0001] The invention relates to a solid-liquid separation device, which uses activated carbon to separate suspended matter in raw water during the water treatment process of a water purification plant. Background technique [0002] In a water purification plant, water is treated by various methods in accordance with the raw water to be treated. For example, in the presence of odor (2-MIB or geosmin), anionic surfactants, phenols, derived methane and its precursors, low-boiling organic chlorides (trichlorethylene, etc.) or traces of harmful substances (pesticides, etc.) Activated carbon is used for the purpose of adsorbing these substances and the like in the water treatment of ordinary water. [0003] use figure 1 An example of a water treatment system 100 of a water purification plant using activated carbon will be described. Raw water taken from water sources such as rivers is first concentrated in the water intake well 1 near the water source. Afterwar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/40
CPCC02F1/66C02F1/52C02F1/76C02F9/00C02F1/385C02F2303/16C02F2209/003C02F2209/001C02F1/001C02F1/283C02F1/008C02F2001/007
Inventor 福田美意毛受卓山本泰青木一义松代武士有村良一阿部法光黑川太汤川敦司早见德介
Owner KK TOSHIBA
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