EP 0817763 A4 20000531 - BIOMASS REDUCTION AND BIOREMEDIATION PROCESSES AND PRODUCTS
Title (en)
BIOMASS REDUCTION AND BIOREMEDIATION PROCESSES AND PRODUCTS
Title (de)
VERMINDERUNG DER BIOMASSE UND VERFAHREN DER BIOLOGISCHEN ENTSORGUNG UND PRODUKTE
Title (fr)
PROCEDES DE REDUCTION DE LA BIOMASSE ET DE BIORESTAURATION ET PRODUITS
Publication
Application
Priority
- US 9603775 W 19960313
- US 40271195 A 19950313
Abstract (en)
[origin: WO9628400A1] An aerobic, thermophilic, alkalinic composting process for biodegrading waste products and producing byproducts which are useful for agriculture fertilizer as well as for bioremediating organic and hydrocarbon products. The composting process has multiple steps including an early step of creating extremely high temperature and extremely high pH to stress bacteria to enable them to induce enzymatically catalyzed hydrolysis of waste products or organics or hydrocarbons in the presence of water. This is accomplished at the end of a first composting stage, employing indiginous bacteria under ambient conditions, by adding alkaline materials to the compost pile to reach a pH of at least 10, followed by a second composting stage, and then adding nutrients to the compost pile while maintaining a high level of moisture in the compost pile during the final composting stage. Composted products are unique and are suitable for use in subsequent processes for bioremediating organic and hydrocarbon contaminant materials in situ or ex situ. In situ subsurface bioremediation of soils is benefited by combining DC electrical currents to help propagate treating materials through contaminated soils or clay.
IPC 1-7
C05F 1/00; C05F 3/00; C05F 9/00; C05F 11/00; C05F 17/00; B09C 1/10
IPC 8 full level
B09C 1/10 (2006.01); C05F 9/04 (2006.01); C05F 17/00 (2006.01)
CPC (source: EP)
B09C 1/10 (2013.01); C05F 9/04 (2013.01); C05F 17/10 (2020.01); C05F 17/50 (2020.01); B09C 2101/00 (2013.01); Y02A 40/20 (2018.01); Y02P 20/145 (2015.11); Y02W 30/40 (2015.05)
Citation (search report)
- [X] DATABASE WPI Section Ch Week 199511, Derwent World Patents Index; Class C04, AN 1995-077920, XP002134319 & EP 0745573 A1 19961204 - KIMURA MITSUYO [JP]
- [X] DATABASE BIOSIS BIOSCIENCES INFORMATION SERVICE, PHILADELPHIA, PA, US; PARK S.J. ET AL: "studies on the alkalphilic bacteria producing alkaline protease and its enzyme activities", XP002134374 & JOURNAL OF THE PHARMACEUTICAL SOCIETY OF KOREA, vol. 34, - 1990, pages 47 - 53
- [X] DATABASE BIOSIS BIOSCIENCES INFORMATION SERVICE, PHILADELPHIA, PA, US; DHANDAPANI ET AL.: "production of a thermophilic, extracellular alkaline protease by bacillus stearothermophilus ap-4", XP002134375 & WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY, vol. 10, - 1994, pages 33 - 35
- [X] DATABASE BIOSIS BIOSCIENCES INFORMATION SERVICE, PHILADELPHIA, PA, US; 1994, MASUI AKIHIKO: "Stabilization and rational design of serine protease AprM under highly alkaline and high-temperature conditions.", XP002134317 & APPLIED AND ENVIRONMENTAL MICROBIOLOGY, vol. 60, no. 10, pages 3579-3584
- [X] DATABASE BIOSIS BIOSCIENCES INFORMATION SERVICE, PHILADELPHIA, PA, US; 1994, WILSON S -A; PEEK K; DANIEL R M: "Immobilization of a proteinase from the extremely thermophilic organism Thermus Rt41A.", XP002134318 & BIOTECHNOLOGY AND BIOENGINEERING, vol. 43, no. 3, pages 225 - 231
- See also references of WO 9628400A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9628400 A1 19960919; EA 000660 B1 19991229; EA 199700229 A1 19980226; EP 0817763 A1 19980114; EP 0817763 A4 20000531
DOCDB simple family (application)
US 9603775 W 19960313; EA 199700229 A 19960313; EP 96911348 A 19960313