BRPI0604111A - solid waste mercury disposal process - Google Patents

solid waste mercury disposal process

Info

Publication number
BRPI0604111A
BRPI0604111A BRPI0604111-6A BRPI0604111A BRPI0604111A BR PI0604111 A BRPI0604111 A BR PI0604111A BR PI0604111 A BRPI0604111 A BR PI0604111A BR PI0604111 A BRPI0604111 A BR PI0604111A
Authority
BR
Brazil
Prior art keywords
mercury
solid
tailings
solid waste
waste
Prior art date
Application number
BRPI0604111-6A
Other languages
Portuguese (pt)
Inventor
Claudia Carvalhinho Windmoller
Rochel Montero Lago
Walter Alves Junior Durao
Original Assignee
Univ Minas Gerais
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 Univ Minas Gerais filed Critical Univ Minas Gerais
Priority to BRPI0604111A priority Critical patent/BRPI0604111B1/en
Publication of BRPI0604111A publication Critical patent/BRPI0604111A/en
Publication of BRPI0604111B1 publication Critical patent/BRPI0604111B1/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Processing Of Solid Wastes (AREA)

Abstract

PROCESSO DE ELIMINAçãO DE MERCúRIO DE REJEITOS SóLIDOS A presente invenção caracteriza-se pelo processo de eliminação de mercúrio contaminante presente em rejeitos sólidos em geral que contenham Hg¬ 2+¬ fortemente aderido, como solos, vidros, cerâmicas, madeiras, rejeitos industriais e especialmente resíduos de lâmpadas de vapor de mercúrio, utilizando de forma inovadora agentes químicos redutores sólidos. O processo se baseia na utilização de um redutor químico inorgânico, que por simples trituração com o material sólido contaminado, resulta na rápida redução das diferentes espécies contaminantes de mercúrio para mercúrio metálico. Este mercúrio metálico pode então ser volatilizado e facilmente removido e coletado, levando à descontaminação do rejeito. O processo mostra as vantagens de ser simples, de menor custo, limpo, sem gerar qualquer outro tipo de efluente que necessite tratamento e ainda ser capaz de retirar de forma mais eficiente o mercúrio mais fortemente ligado a rejeitos sólidos comparado ao simples tratamento térmico.SOLID WASTE MERCURY DISPOSAL PROCESS The present invention is characterized by the process of eliminating contaminant mercury present in solid solid tailings containing strongly adhered Hg¬ 2 +,, such as soils, glass, ceramics, wood, industrial and especially tailings. mercury vapor lamp waste by innovatively using solid reducing chemicals. The process is based on the use of an inorganic chemical reducer, which by simple grinding with the contaminated solid material results in the rapid reduction of the different mercury contaminating species to metallic mercury. This metallic mercury can then be volatilized and easily removed and collected, leading to decontamination of the tailings. The process shows the advantages of being simple, cost-effective, clean, without generating any other type of effluent that needs treatment and yet being able to more efficiently remove mercury more strongly bound to solid waste compared to simple heat treatment.

BRPI0604111A 2006-08-24 2006-08-24 solid waste mercury disposal process BRPI0604111B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0604111A BRPI0604111B1 (en) 2006-08-24 2006-08-24 solid waste mercury disposal process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRPI0604111A BRPI0604111B1 (en) 2006-08-24 2006-08-24 solid waste mercury disposal process

Publications (2)

Publication Number Publication Date
BRPI0604111A true BRPI0604111A (en) 2008-04-22
BRPI0604111B1 BRPI0604111B1 (en) 2016-05-10

Family

ID=39309859

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0604111A BRPI0604111B1 (en) 2006-08-24 2006-08-24 solid waste mercury disposal process

Country Status (1)

Country Link
BR (1) BRPI0604111B1 (en)

Also Published As

Publication number Publication date
BRPI0604111B1 (en) 2016-05-10

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 3A, 4A, 5A E 6A ANUIDADES.

B08H Application fees: decision cancelled [chapter 8.8 patent gazette]

Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 2167 DE 17/07/2012.

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time
B11N Dismissal: publication cancelled [chapter 11.14 patent gazette]

Free format text: ANULADA A PUBLICACAO NA RPI 2363 DE 19/04/2016 DE ARQUIVAMENTO DO PEDIDO POR TER SIDO INDEVIDA.

B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 24/08/2006, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 16A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2684 DE 14-06-2022 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.