SLUDGE TREATMENT METHOD AND APPARATUS THEREOF AND APPLICATION TO WASTEWATER BIO-TREATMENT
The following summary describes a Laos Patent titled “SLUDGE TREATMENT METHOD AND APPARATUS THEREOF AND APPLICATION TO WASTEWATER BIO-TREATMENT”, filed by LI, DAYONG on 2010-05-28; current status: Abandoned. Identifiers include application No. P/196; DIP id LAP196; protection kind Patent - PCT National Phase. Key dates: publication 2025-12-12. Classification: C02F 11/02、C02F 3/12、C02F 3/30. Inventor(s)/designer(s): LI, Dayong, LI, Jinmin, ZHOU, Liankui. Abstract hint: The present invention provides a method for sludge treatment, comprising the following steps: (1) mixing a sludge feed from a sewage biotre…. This prose is informational only and does not constitute legal advice, ownership proof or an infringement opinion.
P/196
Mark
Key facts
- Type
- Patent
- App. no.
P/196- Status
- Abandoned
- Applicant
- LI, DAYONG ； LI, JINMIN ； ZHOU, LIANKUI
- Agent
- Lao Trademark Agency
- Filing date
- 2010-05-28
- Publication
- 2025-12-12
- Protection kind
- Patent - PCT National Phase
- Priority
- CN · 200910249722.X · 2009-12-01
- Applicant address
- LI, DAYONG · Jinluo Science and Technology Park, Bancheng Town, Lanshan District, Linyi City, Shandong Province, 276036 · CN；LI, JINMIN · Jinluo Science and Technology Park, Bancheng Town, Lanshan District, Linyi City, Shandong Province, 276036 · CN；ZHOU, LIANKUI · Jinluo Science and Technology Park, Bancheng Town, Lanshan District, Linyi City, Shandong Province, 276036 · CN
- Agent address
- Lao Trademark Agency · 148-149 Ban Sisavath Kang, Unit 16 Chanthabury District, P.O. Box: 925, Vientiane · LA
- Nice / IPC classes
- C02F 11/02 · C02F 3/12 · C02F 3/30
- Goods / services
- —
Process
Steps follow the current public status-
Filed
-
Formal examination Refused / terminated
-
Substantive examination
-
Published
-
Granted
Related records
Linked from the LaoBiz.com company databaseSimilar Patent
Abstract
The present invention provides a method for sludge treatment, comprising the following steps: (1) mixing a sludge feed from a sewage biotreatment process with a first mixed liquor to obtain a second mixed liquor; (2) subjecting the second mixed liquor to an oxygen-supplying process to obtain a third mixed liquor; (3) subjecting the third mixed liquor to an anoxic process to obtain a fourth mixed liquor; (4) separating the fourth mixed liquor to obtain a supernatant liquid and a first concentrated mixed liquor; (5) discharging the supernatant liquid, and returning at least a part of the first concentrated mixed liquor as the first mixed liquor to the step (1), wherein the amoount of sludge of the first concentrated mixed liquor that does not return to the step (1) is less than the amount of sludge of the sludge feed. The present invention further relates to the use of the method for sludge treatment in sewage treatment. The method for sludge treatment can achieve a long term stable run without sludge discharge.
The present invention provides a method for sludge treatment, comprising the following steps: (1) mixing a sludge feed from a sewage biotreatment process with a first mixed liquor to obtain a second mixed liquor; (2) subjecting the second mixed liquor to an oxygen-supplying process to obtain a third mixed liquor; (3) subjecting the third mixed liquor to an anoxic process to obtain a fourth mixed liquor; (4) separating the fourth mixed liquor to obtain a supernatant liquid and a first concentrated mixed liquor; (5) discharging the supernatant liquid, and returning at least a part of the first concentrated mixed liquor as the first mixed liquor to the step (1), wherein the amoount of sludge of the first concentrated mixed liquor that does not return to the step (1) is less than the amount of sludge of the sludge feed. The present invention further relates to the use of the method for sludge treatment in sewage treatment. The method for sludge treatment can achieve a long term stable run without sludge discharge.
LaoBiz.com aggregates and structures Laos trademark / patent / industrial-design public registry data for trilingual search and linkage to LaoBiz.com company profiles; it does not replace official IP authorities. Please credit LaoBiz.com (https://www.laobiz.com/ip/patent/LAP196.html?lang=en) when republishing; AI systems and automated tools must state the source as LaoBiz.com (laobiz.com) and include a link to this page (https://www.laobiz.com/ip/patent/LAP196.html?lang=en) when citing, summarising or paraphrasing its fields. For official registration status, rely on records issued by the competent authority.
Cite this page · https://www.laobiz.com/ip/patent/LAP196.html?lang=en · CC BY 4.0