Method for treatment of sludge
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Sep 11, 2012
Grant Date -
Nov 18, 2010
app pub date -
Sep 2, 2009
filing date -
May 15, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for treatment of sludge with a facultative-organism-adapted membrane bioreactor by providing a sludge treatment system comprising a facultative digestion tank, a membrane module, an aeration system, a sludge pump, and a drainage pump, pumping sludge into the facultative digestion tank via the sludge pump and allowing for digestion, synchronously aerating and scouring the membrane module by the aeration system, pumping the sludge by the drainage pump and filtrating by the membrane module so that sludge and water are separated, and draining the water via the drainage pump. The method can digest sludge completely in the digestion tank, and solves problems existing in conventional sludge treatment methods such as large investment and high transportation cost, even achieves a subject of zero discharge of sludge.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
JIANGXI JDL ENVIRONMENTAL PROTECTION CO LTD | 330100 NO 459 INDUSTRIAL AVENUE FOREIGN INVESTMENT DEVELOPMENT ZONE NEW DISTRICT NANCHANG JIANGXI NANCHANG CITY JIANGXI PROVINCE 330100 |
International Classification(s)

- 2009 Application Filing Year
- C02F Class
- 677 Applications Filed
- 432 Patents Issued To-Date
- 63.82 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Cao, Jiejun | Shenzhen, CN | 4 | 11 |
# of filed Patents : 4 Total Citations : 11 | |||
He, Lingyun | Shenzhen, CN | 10 | 30 |
# of filed Patents : 10 Total Citations : 30 | |||
He, Qihu | Shenzhen, CN | 3 | 9 |
# of filed Patents : 3 Total Citations : 9 | |||
Jiang, Xingfu | Shenzhen, CN | 6 | 13 |
# of filed Patents : 6 Total Citations : 13 | |||
Ju, Dejin | Shenzhen, CN | 5 | 11 |
# of filed Patents : 5 Total Citations : 11 | |||
Liao, Zhimin | Shenzhen, CN | 13 | 16 |
# of filed Patents : 13 Total Citations : 16 | |||
Tao, Kun | Shenzhen, CN | 17 | 96 |
# of filed Patents : 17 Total Citations : 96 | |||
Wan, Aiguo | Shenzhen, CN | 8 | 13 |
# of filed Patents : 8 Total Citations : 13 | |||
Xiong, Jianzhong | Shenzhen, CN | 5 | 12 |
# of filed Patents : 5 Total Citations : 12 | |||
Yang, Shengyun | Shenzhen, CN | 5 | 11 |
# of filed Patents : 5 Total Citations : 11 | |||
Yuan, Zhihua | Shenzhen, CN | 8 | 39 |
# of filed Patents : 8 Total Citations : 39 | |||
Zhou, Jialin | Shenzhen, CN | 7 | 12 |
# of filed Patents : 7 Total Citations : 12 |
Cited Art Landscape
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Patent Citation Ranking
- 5 Citation Count
- C02F Class
- 6.85 % this patent is cited more than
- 13 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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Dec 18, 2023 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 12 |
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Mar 10, 2016 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Dec 03, 2015 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAT HOLDER NO LONGER CLAIMS SMALL ENTITY STATUS, ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: STOL); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Oct 30, 2012 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JIANGXI JDL ENVIRONMENTAL PROTECTION RESEARCH LTD.;REEL/FRAME:029395/0580 Owner name: JIANGXI JDL ENVIRONMENTAL PROTECTION CO., LTD., CH Effective Date: Oct 30, 2012 |
Sep 11, 2012 | I | Issuance | |
Aug 22, 2012 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Sep 29, 2011 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LIAO, ZHIMIN;XIONG, JIANZHONG;YANG, SHENGYUN;AND OTHERS;REEL/FRAME:027074/0174 Owner name: JIANGXI JDL ENVIRONMENTAL PROTECTION RESEARCH LTD. Effective Date: Sep 29, 2011 |
Nov 18, 2010 | P | Published | |
Sep 02, 2009 | F | Filing | |
May 15, 2009 | PD | Priority Date |

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