Processing

Please wait...

Settings

Settings

Goto Application

1. WO2009082886 - A SLUDGE CONCENTRATED DEHYDRATION METHOD

Publication Number WO/2009/082886
Publication Date 09.07.2009
International Application No. PCT/CN2008/071136
International Filing Date 30.05.2008
IPC
C02F 11/14 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
11Treatment of sludge; Devices therefor
12by de-watering, drying or thickening
14with addition of chemical agents
C02F 11/12 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
11Treatment of sludge; Devices therefor
12by de-watering, drying or thickening
CPC
C02F 1/5236
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
52by flocculation or precipitation of suspended impurities
5236using inorganic agents
C02F 1/56
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
52by flocculation or precipitation of suspended impurities
54using organic material
56Macromolecular compounds
C02F 11/121
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
11Treatment of sludge; Devices therefor
12by de-watering, drying or thickening
121by mechanical de-watering
C02F 11/14
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
11Treatment of sludge; Devices therefor
12by de-watering, drying or thickening
14with addition of chemical agents
Applicants
  • 广州普得环保设备有限公司 GUANGZHOU PUDE ENVIRONMENTAL PROTECTION EQUIPMENT, LTD. [CN]/[CN] (AllExceptUS)
  • 钟环声 ZHONG, Huansheng [CN]/[CN] (UsOnly)
  • 李雷 LI, Lei [CN]/[CN] (UsOnly)
  • 吴嘉聪 WU, Jiacong [CN]/[CN] (UsOnly)
  • 吴学伟 WU, Xuewei [CN]/[CN] (UsOnly)
  • 孙志民 SUN, Zhimin [CN]/[CN] (UsOnly)
  • 杨海英 YANG, Haiying [CN]/[CN] (UsOnly)
Inventors
  • 钟环声 ZHONG, Huansheng
  • 李雷 LI, Lei
  • 吴嘉聪 WU, Jiacong
  • 吴学伟 WU, Xuewei
  • 孙志民 SUN, Zhimin
  • 杨海英 YANG, Haiying
Agents
  • 广州新诺专利商标事务所有限公司 GUANGZHOU SINO PATENT & TRADEMARK AGENCY CO., LTD.
Priority Data
200810025603.102.01.2008CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) A SLUDGE CONCENTRATED DEHYDRATION METHOD
(FR) PROCÉDÉ DE DÉSHYDRATATION DE BOUE CONCENTRÉE
(ZH) 一种污泥浓缩脱水的方法
Abstract
(EN)
A sludge concentrated dehydration method is provided, which comprises the following steps: (1) adding organic agent (polyacrylamide) to sludge for the first conditioning, then which is concentrated; (2) adding inorganic agent (iron and calcium compounds) to sludge treated by step (1) for the second conditioning, then which is fed to a dehydrator; (3) making a corresponding process for the dehydrated sludge when it satisfies the final requirements.
(FR)
Procédé de déshydratation de boue concentrée, comportant les étapes suivantes : (1) ajouter un agent organique (polyacrylamide) à la boue à titre de premier conditionnement, puis la concentrer ; (2) ajouter un agent inorganique (composés de fer et de calcium) à la boue traitée par l'étape (1) à titre de deuxième conditionnement, puis l'introduire dans un déshydrateur ; (3) appliquer un processus correspondant à la boue déshydratée lorsqu'elle satisfait les exigences finales.
Latest bibliographic data on file with the International Bureau