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1. WO2003035554 - IMPROVED METHODS, PROCESSES AND APPARATUS FOR BIO-SOLIDS RECYCLING AND THE PRODUCT OF BIO-SOLIDS FROM SUCH METHODS, PROCESSES AND APPARATUS

Publication Number WO/2003/035554
Publication Date 01.05.2003
International Application No. PCT/US2002/027772
International Filing Date 27.08.2002
IPC
C02F 3/28 2006.1
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
28Anaerobic digestion processes
C02F 3/30 2006.1
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
30Aerobic and anaerobic processes
C02F 3/34 2006.1
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
34characterised by the microorganisms used
C02F 11/04 2006.1
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
11Treatment of sludge; Devices therefor
02Biological treatment
04Anaerobic treatment; Production of methane by such processes
C02F 11/14 2006.1
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
CPC
C02F 11/04
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
11Treatment of sludge; Devices therefor
02Biological treatment
04Anaerobic treatment; Production of methane by such processes
C02F 11/147
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
147using organic substances
C02F 2301/106
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
2301General aspects of water treatment
10Temperature conditions for biological treatment
106Thermophilic treatment
C02F 3/282
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
28Anaerobic digestion processes
282using anaerobic sequencing batch reactors
C02F 3/286
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
28Anaerobic digestion processes
286including two or more steps
C02F 3/30
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
30Aerobic and anaerobic processes
Applicants
  • CLEARVALUE TECHNOLOGIES [US]/[US] (AllExceptUS)
  • HAASE, Richard, A. [US]/[US]
  • TAYLOR, Eileen, Turowski [US]/[US]
Inventors
  • HAASE, Richard, A.
  • TAYLOR, Eileen, Turowski
Agents
  • GILBRETH, Mark
Priority Data
60/315,46428.08.2001US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED METHODS, PROCESSES AND APPARATUS FOR BIO-SOLIDS RECYCLING AND THE PRODUCT OF BIO-SOLIDS FROM SUCH METHODS, PROCESSES AND APPARATUS
(FR) PROCEDES, PROCESSUS ET APPAREILS AMELIORES DE RECYCLAGE DE MATIERES SOLIDES BIOLOGIQUES ET PRODUIT DES MATIERES SOLIDES BIOLOGIQUES OBTENU AU MOYEN DE CES PROCEDES, PROCESSUS ET APPAREILS
Abstract
(EN) A biosolids treatment process and system are described. The process includes a thermophilic digestion step (1), a methane generation step (2), and a mesophilic disgestion step (3). Optionally, the process also includes a first stage solids dewatering step (4). Optionally, the process also includes an evaporative drying step (5).
(FR) L'invention est relative au domaine du traitement des eaux et concerne des procédés, des processus et des appareils améliorés de traitement de boues, de matières solides séparées et de matières solides biologiques, ainsi que les matières solides biologiques obtenues au moyen de ces procédés, processus et appareils améliorés. L'invention concerne également des procédés, des processus et des appareils économiques de préparation de matières solides aqueuses de classe 'A' permettant de gérer de manière efficace les coûts de déshydratation et d'énergie et étant caractérisés en ce que les produits solides présentent une odeur réduite d'ammoniaque et de sulfure et en ce que le pourcentage de matières solides présent dans le produit aqueux varie entre environ 3 et environ 90 %. Les procédés, processus et appareils selon l'invention permettent d'identifier la source d'odeur dans des matières solides biologiques digérées de manière thermophile et comprennent des systèmes biologiques mésophiles. L'invention concerne enfin des procédés et des processus améliorés de déshydratation de matières solides biologiques thermophiles, ainsi que des procédés, processus et appareils améliorés de désodorisation de thermophiles.
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