ATE288967T1 - METHOD FOR TREATING THE WASTE FROM ALKALINE DISCLOSURE IN THE PAPER PRODUCTION PROCESS AND THE PRODUCT PRODUCED IN THIS WAY - Google Patents

METHOD FOR TREATING THE WASTE FROM ALKALINE DISCLOSURE IN THE PAPER PRODUCTION PROCESS AND THE PRODUCT PRODUCED IN THIS WAY

Info

Publication number
ATE288967T1
ATE288967T1 AT97927900T AT97927900T ATE288967T1 AT E288967 T1 ATE288967 T1 AT E288967T1 AT 97927900 T AT97927900 T AT 97927900T AT 97927900 T AT97927900 T AT 97927900T AT E288967 T1 ATE288967 T1 AT E288967T1
Authority
AT
Austria
Prior art keywords
alkaline
waste
treating
disclosure
way
Prior art date
Application number
AT97927900T
Other languages
German (de)
Inventor
Shall Hassan El
Hall Rhines
Original Assignee
Bountiful Applied Res Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bountiful Applied Res Corp filed Critical Bountiful Applied Res Corp
Priority claimed from PCT/US1997/009418 external-priority patent/WO1998054400A1/en
Application granted granted Critical
Publication of ATE288967T1 publication Critical patent/ATE288967T1/en

Links

Abstract

A water soluble, surface active, polymeric agent is mixed with digestion liquor, preferably with an additional surface active defoamer coagulant agent prior to or during acidification of the alkaline digestive liquor. This results in an easily separable, non-gelatinous, non-gummy, coagulated lignin as a solids, particulate fraction that tends to float on a clarified liquid fraction containing recoverable salts. The solids fraction and the liquid frictions are easily separated, one from the other, by a gravity separation step.
AT97927900T 1997-05-29 1997-05-29 METHOD FOR TREATING THE WASTE FROM ALKALINE DISCLOSURE IN THE PAPER PRODUCTION PROCESS AND THE PRODUCT PRODUCED IN THIS WAY ATE288967T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1997/009418 WO1998054400A1 (en) 1993-08-20 1997-05-29 Process for treating spent, waste, alkaline digestion liquor from paper pulping operations and product

Publications (1)

Publication Number Publication Date
ATE288967T1 true ATE288967T1 (en) 2005-02-15

Family

ID=22261000

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97927900T ATE288967T1 (en) 1997-05-29 1997-05-29 METHOD FOR TREATING THE WASTE FROM ALKALINE DISCLOSURE IN THE PAPER PRODUCTION PROCESS AND THE PRODUCT PRODUCED IN THIS WAY

Country Status (5)

Country Link
JP (1) JP2002500707A (en)
AT (1) ATE288967T1 (en)
AU (1) AU3224797A (en)
CA (1) CA2291722C (en)
DE (1) DE69732499D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4670011B2 (en) * 2005-10-18 2011-04-13 独立行政法人産業技術総合研究所 Lignin-containing resin, method for producing the same, and method for separating lignin
WO2011162420A1 (en) * 2010-06-25 2011-12-29 ロペスアンドエヌティ有限会社 Method for recovering lignin in the neutral range from spent pulp cooking liquor

Also Published As

Publication number Publication date
CA2291722A1 (en) 1998-12-03
DE69732499D1 (en) 2005-03-17
JP2002500707A (en) 2002-01-08
CA2291722C (en) 2006-06-13
AU3224797A (en) 1998-12-30

Similar Documents

Publication Publication Date Title
US3314880A (en) Method of removing a contaminating substance from a liquid by flotation
DE284754T1 (en) METHOD FOR TREATING POLLUTED MATERIAL.
US3313795A (en) Method of treating a liquid containing dissolved proteinaceous constituents
SE8705141D0 (en) PROCEDURE FOR CLEANING THE HEART-INHALING END IN CELLULOSAMASSA PREPARATION
ATE288967T1 (en) METHOD FOR TREATING THE WASTE FROM ALKALINE DISCLOSURE IN THE PAPER PRODUCTION PROCESS AND THE PRODUCT PRODUCED IN THIS WAY
JPH05115882A (en) Treatment for alkaline photosensitive film development waste water containing peeled-off resin
ATE277228T1 (en) METHOD FOR REMOVAL OF HARMFUL COMPONENTS FROM A TREATMENT LIQUID
JPH0346182B2 (en)
JPS6391196A (en) Dephosphorization method for night soil treatment by using ultrafilter membrane
CN101973675A (en) Method for extracting protein from fish meal processing wastewater and making wastewater up to discharge standard
JPS58139798A (en) Treatment of organic waste liquid
JPH0410397B2 (en)
JPS54144761A (en) Method of treating waste water containing oil
JP4405286B2 (en) Fishery processing wastewater scum treatment method
DE69911046D1 (en) METHOD FOR TREATING WASTEWATER WITH CARBONATED SOLID PARTICLES
JPS5648293A (en) Treatment of organic waste water
KR870003958A (en) Purification by solid-liquid separation of phosphate wastewater and organic fertilizer production method
JPH0228388B2 (en)
JPS596986A (en) Treatment of night soil-type filthy water
SU1643614A1 (en) Method of neutralization of vegetable stock hydrolyzates
JP2003200142A (en) Method and apparatus for treating material containing oil
KR20000063312A (en) A Wastewater Disposal Method
Akamatsu et al. Simultaneous removal of phosphorus and BOD from waste water by activated-sludge process
JP2505834B2 (en) Treatment of waste liquid containing acrylic acid and methacrylic acid derivatives
JPS57136991A (en) Solid-liquid separating method

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties