SlideShare ist ein Scribd-Unternehmen logo
1 von 19
HAZARDOUS WASTE
MANAGEMENT
BY
ARKADEEP DEY
TO,
DR. PAPIA DATTA
Assistant Professor of Chemistry
RCCIIT
:
Inorganic & organic chemicals
Petroleum refineries
Iron & steel
Non ferrous metals
Leather tanning
Metal finishing .
1.IGNITABILITY
IGNITABIE
WASTE
2.CORROSIVITY
CORROSIVE
WASTE
TOXIC
WASTE
3.REACTIVITY
REACTIVE
WASTE
4.TOXICITY
 Aim at providing control
 Specify the responsibilities
 Regulations governing generators of Hazardous Waste
1. Preparation for transport
2. Manifestation requirements
3. Record keeping and reporting
 Regulations governing transporters of Hazardous Waste
1. Notification prior to transport
2. Manifestation requirements





HAZARDOUS WASTE LABELING
Use of hazardous waste labels: A generator who is accumulating
hazardous waste on-site in containers must ensure that the
containers are properly marked using hazardous waste labels .
Label identifications: There are 3 typical hazardous waste labels
that may be used:- Hazardous wastes, Universal wastes & Empty
wastes .
HAZARDOUS WASTE LABELLING
1. Waste minimization
2. Detoxification & neutralization of waste by treatments
3. Destruction of combustible waste by incineration
4. Solidification of sludge & ash from step 2 & 3
5. Disposal of residues in landfills
:
 Helps in resource conservation ,economic efficiency & environmental
protection.
 The strategies include-
• source reduction,
• recycling
• waste exchange.
Hazardous-Waste Management

• Involves variety of separation techniques
• Whenever a waste containing liquid & solid
must be treated.
Physical processes are:-
Screening
Sedimentation
Centrifugation
Flotation
Adsorption
Stripping
Reverse Osmosis.

 To make the complete breakdown of HW into non
toxic form and
 To reduce the hazard of a particular waste
Chemical methods are :
o Neutralization
o Precipitation
o Oxidation
o Reduction
 Neutralization : carried out when the waste contains
excessive amount of acid or alkali.
 Oxidation : used to destroy toxic cyanide molecule
with oxidising agents .
 Reductions : Used in the conversion of hexavalent
chromium into trivalent chromium before it can be
precipitated.
 Anodic electrolysis: used for the destruction of
cyanide in spent stripping & plating solutions.
 Biological treatment:
 Different types of microorganisms are used for
degradation of specific compounds of HW
 Some microbes found in soil & sewage sludge
have been tested in the degradation of organic
chemicals
 Tests have been conducted to degradation of
organic chemicals .
 Pseudomonas bacteria – benzene, phenol,
cresol
3.INCINERATION :
 Able to achieve 99.99% destruction & removal efficiency of
hazardous components in waste .
 Primary products are CO2,vapour & ash .
 Sulphur bearing wastes gives off SO2,CO2,H2O when
incinerated.
 By product of incomplete combustion are sometime more
harmful.
Types of incinerators : i)Liquid injection system
ii)Rotary kilns
4.Solidification or Stabilization :
 Convert the waste into an insoluble, rock hard material.
 Additive materials used to reduce the mobility of
pollutants in the waste.
 Certain materials like nickel cannot be destroyed or
detoxified by above methods
 The residues that are left out are solidified to reduce
the leach ability .
5.DISPOSAL METHODS:
 The options for disposal include land disposal,
underground disposal &deep well injection .
 The choice of disposal method should be based on
evaluation of economics & potential pollution
risks.
 To prevent environmental pollution from landfills,
it is essential that site c/s are taken into account.
Thank you…

Más contenido relacionado

Was ist angesagt?

Hazardous waste Management
Hazardous waste Management Hazardous waste Management
Hazardous waste Management sankethkulkarni1
 
Hazardous waste managment
Hazardous waste managmentHazardous waste managment
Hazardous waste managmentpavanrk7066
 
Hazardous Waste Management by Joshua Seli
Hazardous Waste Management by Joshua SeliHazardous Waste Management by Joshua Seli
Hazardous Waste Management by Joshua SeliDivine Word University
 
Hazardous waste management
Hazardous waste managementHazardous waste management
Hazardous waste managementUgrasen Gulshan
 
Hazardous waste management (2)
Hazardous waste management (2)Hazardous waste management (2)
Hazardous waste management (2)angbeen choudhary
 
82 hazardous waste management
82 hazardous waste management82 hazardous waste management
82 hazardous waste managementGaurav Pahuja
 
Hazardous waste
Hazardous wasteHazardous waste
Hazardous wasteRaja Rajan
 
Classification, Characterization & Identification of Hazardous Waste
Classification, Characterization & Identification of Hazardous Waste Classification, Characterization & Identification of Hazardous Waste
Classification, Characterization & Identification of Hazardous Waste Babu Banarsi Das University Lucknow
 
HAZARDOUS WASTE MANAGEMENT BY RAFI
HAZARDOUS WASTE MANAGEMENT BY RAFIHAZARDOUS WASTE MANAGEMENT BY RAFI
HAZARDOUS WASTE MANAGEMENT BY RAFIMAHAMMED RAFI
 
Hazardous Waste Management & Its Legal Requirement in India
Hazardous Waste Management & Its Legal Requirement in IndiaHazardous Waste Management & Its Legal Requirement in India
Hazardous Waste Management & Its Legal Requirement in IndiaNikesh Banwade
 
Solid Waste Management (Unit-V)
Solid Waste Management (Unit-V)Solid Waste Management (Unit-V)
Solid Waste Management (Unit-V)GAURAV. H .TANDON
 
solid waste management
solid waste managementsolid waste management
solid waste managementRiyaj Bashinde
 

Was ist angesagt? (20)

Hazardous waste Management
Hazardous waste Management Hazardous waste Management
Hazardous waste Management
 
Hazardous waste managment
Hazardous waste managmentHazardous waste managment
Hazardous waste managment
 
Hazardous Waste Management by Joshua Seli
Hazardous Waste Management by Joshua SeliHazardous Waste Management by Joshua Seli
Hazardous Waste Management by Joshua Seli
 
Hazardous waste management
Hazardous waste managementHazardous waste management
Hazardous waste management
 
Hazardous waste management (2)
Hazardous waste management (2)Hazardous waste management (2)
Hazardous waste management (2)
 
Hazardous waste
Hazardous waste Hazardous waste
Hazardous waste
 
82 hazardous waste management
82 hazardous waste management82 hazardous waste management
82 hazardous waste management
 
Hazardous wastes - types & sources
Hazardous wastes - types & sourcesHazardous wastes - types & sources
Hazardous wastes - types & sources
 
Hazardous wastes
Hazardous wastesHazardous wastes
Hazardous wastes
 
Hazardous waste
Hazardous wasteHazardous waste
Hazardous waste
 
Hazardous w aste
Hazardous w asteHazardous w aste
Hazardous w aste
 
Hazardous Waste Management
Hazardous Waste Management Hazardous Waste Management
Hazardous Waste Management
 
Treatment and disposal of Hazardous wastes
Treatment and disposal of Hazardous wastesTreatment and disposal of Hazardous wastes
Treatment and disposal of Hazardous wastes
 
Classification, Characterization & Identification of Hazardous Waste
Classification, Characterization & Identification of Hazardous Waste Classification, Characterization & Identification of Hazardous Waste
Classification, Characterization & Identification of Hazardous Waste
 
HAZARDOUS WASTE MANAGEMENT BY RAFI
HAZARDOUS WASTE MANAGEMENT BY RAFIHAZARDOUS WASTE MANAGEMENT BY RAFI
HAZARDOUS WASTE MANAGEMENT BY RAFI
 
Hazardous Waste Management & Its Legal Requirement in India
Hazardous Waste Management & Its Legal Requirement in IndiaHazardous Waste Management & Its Legal Requirement in India
Hazardous Waste Management & Its Legal Requirement in India
 
Solid Waste Management (Unit-V)
Solid Waste Management (Unit-V)Solid Waste Management (Unit-V)
Solid Waste Management (Unit-V)
 
Hazardous Waste Management
Hazardous Waste ManagementHazardous Waste Management
Hazardous Waste Management
 
Solid waste part-i
Solid waste part-iSolid waste part-i
Solid waste part-i
 
solid waste management
solid waste managementsolid waste management
solid waste management
 

Andere mochten auch

Solid waste disposal
Solid waste disposalSolid waste disposal
Solid waste disposalYenyen H
 
Solid waste and disposal methods
Solid waste and disposal methodsSolid waste and disposal methods
Solid waste and disposal methodsAnkur Verma
 
Solid waste disposal methods
Solid waste disposal  methodsSolid waste disposal  methods
Solid waste disposal methodskanhayoyo
 
Handling & management of hazardous and biomedical waste
Handling & management of hazardous and biomedical wasteHandling & management of hazardous and biomedical waste
Handling & management of hazardous and biomedical wasteAna Debbarma
 
Classification of solid waste
Classification of solid wasteClassification of solid waste
Classification of solid wasteNarendra Gagiya
 
Collection of solid waste
Collection of solid wasteCollection of solid waste
Collection of solid wasteMd Moniruzzaman
 
Solid waste management
Solid waste managementSolid waste management
Solid waste managementRachana Tiwari
 
solid waste management
solid waste managementsolid waste management
solid waste managementAmit Nakli
 

Andere mochten auch (12)

Solid waste disposal
Solid waste disposalSolid waste disposal
Solid waste disposal
 
Solid waste and disposal methods
Solid waste and disposal methodsSolid waste and disposal methods
Solid waste and disposal methods
 
Solid waste disposal methods
Solid waste disposal  methodsSolid waste disposal  methods
Solid waste disposal methods
 
Solid waste
Solid wasteSolid waste
Solid waste
 
Handling & management of hazardous and biomedical waste
Handling & management of hazardous and biomedical wasteHandling & management of hazardous and biomedical waste
Handling & management of hazardous and biomedical waste
 
Classification of solid waste
Classification of solid wasteClassification of solid waste
Classification of solid waste
 
Collection of solid waste
Collection of solid wasteCollection of solid waste
Collection of solid waste
 
Solid waste management
Solid waste managementSolid waste management
Solid waste management
 
Composting
Composting Composting
Composting
 
solid waste management
solid waste managementsolid waste management
solid waste management
 
Waste disposal
Waste disposalWaste disposal
Waste disposal
 
Solid waste management ppt
Solid waste management pptSolid waste management ppt
Solid waste management ppt
 

Ähnlich wie Hazardous-Waste Management

Toxic and hazardous elements and their sustainable management
Toxic and hazardous elements and their sustainable managementToxic and hazardous elements and their sustainable management
Toxic and hazardous elements and their sustainable managementIslamic University of Bangladesh
 
Hazardous industrial waste management technology
Hazardous industrial waste management technologyHazardous industrial waste management technology
Hazardous industrial waste management technologyHEMA A
 
Overview of hazardous waste management
Overview of hazardous waste management Overview of hazardous waste management
Overview of hazardous waste management karan gulshan
 
Environmental of chemistry
Environmental of chemistryEnvironmental of chemistry
Environmental of chemistryRezhmand1
 
chemical waste management.pptx
chemical waste management.pptxchemical waste management.pptx
chemical waste management.pptxShaziyaMomin
 
Role of Environmental Biotechnology
Role of Environmental BiotechnologyRole of Environmental Biotechnology
Role of Environmental BiotechnologyRinaldo John
 
Hazardous waste.pdf
Hazardous waste.pdfHazardous waste.pdf
Hazardous waste.pdfamatulwasey
 
Chapter 1 Industrial wastewater treatment.ppt
Chapter 1 Industrial wastewater treatment.pptChapter 1 Industrial wastewater treatment.ppt
Chapter 1 Industrial wastewater treatment.pptSophieLv2
 
Incineration And Pyrolysis
Incineration And PyrolysisIncineration And Pyrolysis
Incineration And PyrolysisAkash Tikhe
 
Chemical Characteristics of Wastewater
Chemical Characteristics of WastewaterChemical Characteristics of Wastewater
Chemical Characteristics of WastewaterParth Desani
 
Bioremediation
BioremediationBioremediation
BioremediationAnand M
 
Quality control drugs and pharmaceuticals
Quality control drugs and pharmaceuticalsQuality control drugs and pharmaceuticals
Quality control drugs and pharmaceuticalsSHIVANEE VYAS
 
Solid waste management including mordern and trditional techniques
Solid waste management including mordern and trditional techniquesSolid waste management including mordern and trditional techniques
Solid waste management including mordern and trditional techniquesHarshit Gupta
 
Presentation on (1) waste 6reatment
Presentation  on (1) waste 6reatmentPresentation  on (1) waste 6reatment
Presentation on (1) waste 6reatmentRazia Urmi
 

Ähnlich wie Hazardous-Waste Management (20)

Toxic and hazardous elements and their sustainable management
Toxic and hazardous elements and their sustainable managementToxic and hazardous elements and their sustainable management
Toxic and hazardous elements and their sustainable management
 
Hazards waste
Hazards wasteHazards waste
Hazards waste
 
Hazardous industrial waste management technology
Hazardous industrial waste management technologyHazardous industrial waste management technology
Hazardous industrial waste management technology
 
Overview of hazardous waste management
Overview of hazardous waste management Overview of hazardous waste management
Overview of hazardous waste management
 
Bioremediation
BioremediationBioremediation
Bioremediation
 
HUKUM.pdf
HUKUM.pdfHUKUM.pdf
HUKUM.pdf
 
4Bioremediation.pdf
4Bioremediation.pdf4Bioremediation.pdf
4Bioremediation.pdf
 
Environmental of chemistry
Environmental of chemistryEnvironmental of chemistry
Environmental of chemistry
 
chemical waste management.pptx
chemical waste management.pptxchemical waste management.pptx
chemical waste management.pptx
 
Role of Environmental Biotechnology
Role of Environmental BiotechnologyRole of Environmental Biotechnology
Role of Environmental Biotechnology
 
Biomedical Waste Management
Biomedical Waste Management Biomedical Waste Management
Biomedical Waste Management
 
Hazardous waste.pdf
Hazardous waste.pdfHazardous waste.pdf
Hazardous waste.pdf
 
Chapter 1 Industrial wastewater treatment.ppt
Chapter 1 Industrial wastewater treatment.pptChapter 1 Industrial wastewater treatment.ppt
Chapter 1 Industrial wastewater treatment.ppt
 
Incineration And Pyrolysis
Incineration And PyrolysisIncineration And Pyrolysis
Incineration And Pyrolysis
 
phycoremediation-3.pptx
phycoremediation-3.pptxphycoremediation-3.pptx
phycoremediation-3.pptx
 
Chemical Characteristics of Wastewater
Chemical Characteristics of WastewaterChemical Characteristics of Wastewater
Chemical Characteristics of Wastewater
 
Bioremediation
BioremediationBioremediation
Bioremediation
 
Quality control drugs and pharmaceuticals
Quality control drugs and pharmaceuticalsQuality control drugs and pharmaceuticals
Quality control drugs and pharmaceuticals
 
Solid waste management including mordern and trditional techniques
Solid waste management including mordern and trditional techniquesSolid waste management including mordern and trditional techniques
Solid waste management including mordern and trditional techniques
 
Presentation on (1) waste 6reatment
Presentation  on (1) waste 6reatmentPresentation  on (1) waste 6reatment
Presentation on (1) waste 6reatment
 

Mehr von Arkadeep Dey

BLACK HOLE-THE OTHER DIMENSION
BLACK HOLE-THE OTHER DIMENSIONBLACK HOLE-THE OTHER DIMENSION
BLACK HOLE-THE OTHER DIMENSIONArkadeep Dey
 
Arduino based heartbeat monitoring system.
Arduino based heartbeat monitoring system.Arduino based heartbeat monitoring system.
Arduino based heartbeat monitoring system.Arkadeep Dey
 
Bhopal Gas Tragedy
Bhopal Gas TragedyBhopal Gas Tragedy
Bhopal Gas TragedyArkadeep Dey
 
Data Structure in C Programming Language
Data Structure in C Programming LanguageData Structure in C Programming Language
Data Structure in C Programming LanguageArkadeep Dey
 

Mehr von Arkadeep Dey (6)

N Queens problem
N Queens problemN Queens problem
N Queens problem
 
Java Swing
Java SwingJava Swing
Java Swing
 
BLACK HOLE-THE OTHER DIMENSION
BLACK HOLE-THE OTHER DIMENSIONBLACK HOLE-THE OTHER DIMENSION
BLACK HOLE-THE OTHER DIMENSION
 
Arduino based heartbeat monitoring system.
Arduino based heartbeat monitoring system.Arduino based heartbeat monitoring system.
Arduino based heartbeat monitoring system.
 
Bhopal Gas Tragedy
Bhopal Gas TragedyBhopal Gas Tragedy
Bhopal Gas Tragedy
 
Data Structure in C Programming Language
Data Structure in C Programming LanguageData Structure in C Programming Language
Data Structure in C Programming Language
 

Último

Pakistan's First Ever National Dialogues on SDGs
Pakistan's First Ever National Dialogues on SDGsPakistan's First Ever National Dialogues on SDGs
Pakistan's First Ever National Dialogues on SDGsHafiz Jawad Sohail
 
What's So Special About the Deathstalker Scorpion_.pdf
What's So Special About the Deathstalker Scorpion_.pdfWhat's So Special About the Deathstalker Scorpion_.pdf
What's So Special About the Deathstalker Scorpion_.pdfexoticpetvenom
 
CONCEPT OF POVERTY AND ENVIRONMENTAL POLLUTION Presentation.pdf Umesha Jayasena
CONCEPT OF POVERTY AND ENVIRONMENTAL POLLUTION Presentation.pdf Umesha JayasenaCONCEPT OF POVERTY AND ENVIRONMENTAL POLLUTION Presentation.pdf Umesha Jayasena
CONCEPT OF POVERTY AND ENVIRONMENTAL POLLUTION Presentation.pdf Umesha JayasenaThe Open University of Sri Lanka
 
Chinese Lesson 1 (Sample) - Forest Pack.pdf
Chinese Lesson 1 (Sample) - Forest Pack.pdfChinese Lesson 1 (Sample) - Forest Pack.pdf
Chinese Lesson 1 (Sample) - Forest Pack.pdfUla Academics
 
Understanding Ecological Literacies .pptx
Understanding Ecological Literacies .pptxUnderstanding Ecological Literacies .pptx
Understanding Ecological Literacies .pptxromelinequitara
 
NIED’s initial response to the 2024 Noto Peninsula Earthquake
NIED’s initial response to the 2024 Noto Peninsula EarthquakeNIED’s initial response to the 2024 Noto Peninsula Earthquake
NIED’s initial response to the 2024 Noto Peninsula EarthquakeTadashi Ise
 
FAIRMAT - Impact report 2023 by Slidor v2 GS.pdf
FAIRMAT - Impact report 2023 by Slidor v2 GS.pdfFAIRMAT - Impact report 2023 by Slidor v2 GS.pdf
FAIRMAT - Impact report 2023 by Slidor v2 GS.pdfanne249861
 
ArtificiaI Intelligence And Sustainability.pptx
ArtificiaI Intelligence And Sustainability.pptxArtificiaI Intelligence And Sustainability.pptx
ArtificiaI Intelligence And Sustainability.pptxNeoV2
 
如何办理南威尔士大学毕业证书/学位证书/成绩单?
如何办理南威尔士大学毕业证书/学位证书/成绩单?如何办理南威尔士大学毕业证书/学位证书/成绩单?
如何办理南威尔士大学毕业证书/学位证书/成绩单?pkunde
 
GFW_Deforestation Exposed Using High Resolution Satellite Imagery to Investig...
GFW_Deforestation Exposed Using High Resolution Satellite Imagery to Investig...GFW_Deforestation Exposed Using High Resolution Satellite Imagery to Investig...
GFW_Deforestation Exposed Using High Resolution Satellite Imagery to Investig...Global Forest Watch
 
case studies of various types of indian gardens
case studies of various types of indian gardenscase studies of various types of indian gardens
case studies of various types of indian gardensDevenJesani1
 
About USGBC | U.S. Green Building Council
About USGBC | U.S. Green Building CouncilAbout USGBC | U.S. Green Building Council
About USGBC | U.S. Green Building CouncilUSGBC
 
Featherlite journey towards Sustainability
Featherlite journey towards SustainabilityFeatherlite journey towards Sustainability
Featherlite journey towards SustainabilityFeatherlite Furniture
 
Featherlite journey towards Sustainability
Featherlite journey towards SustainabilityFeatherlite journey towards Sustainability
Featherlite journey towards Sustainabilityharshan90
 
Toxicity of metallic species, Aresenic.pdf
Toxicity of  metallic species, Aresenic.pdfToxicity of  metallic species, Aresenic.pdf
Toxicity of metallic species, Aresenic.pdfVikasThakur896480
 
Environmental Stewardship and Sustainability
Environmental Stewardship and SustainabilityEnvironmental Stewardship and Sustainability
Environmental Stewardship and SustainabilityMark Lyttleton
 
Resources & Development & types of soil.
Resources & Development & types of soil.Resources & Development & types of soil.
Resources & Development & types of soil.dhaduknevil1
 
About LEED | The world's most widely used green building rating system
About LEED | The world's most widely used green building rating systemAbout LEED | The world's most widely used green building rating system
About LEED | The world's most widely used green building rating systemUSGBC
 

Último (20)

Pakistan's First Ever National Dialogues on SDGs
Pakistan's First Ever National Dialogues on SDGsPakistan's First Ever National Dialogues on SDGs
Pakistan's First Ever National Dialogues on SDGs
 
What's So Special About the Deathstalker Scorpion_.pdf
What's So Special About the Deathstalker Scorpion_.pdfWhat's So Special About the Deathstalker Scorpion_.pdf
What's So Special About the Deathstalker Scorpion_.pdf
 
CONCEPT OF POVERTY AND ENVIRONMENTAL POLLUTION Presentation.pdf Umesha Jayasena
CONCEPT OF POVERTY AND ENVIRONMENTAL POLLUTION Presentation.pdf Umesha JayasenaCONCEPT OF POVERTY AND ENVIRONMENTAL POLLUTION Presentation.pdf Umesha Jayasena
CONCEPT OF POVERTY AND ENVIRONMENTAL POLLUTION Presentation.pdf Umesha Jayasena
 
Chinese Lesson 1 (Sample) - Forest Pack.pdf
Chinese Lesson 1 (Sample) - Forest Pack.pdfChinese Lesson 1 (Sample) - Forest Pack.pdf
Chinese Lesson 1 (Sample) - Forest Pack.pdf
 
Understanding Ecological Literacies .pptx
Understanding Ecological Literacies .pptxUnderstanding Ecological Literacies .pptx
Understanding Ecological Literacies .pptx
 
NIED’s initial response to the 2024 Noto Peninsula Earthquake
NIED’s initial response to the 2024 Noto Peninsula EarthquakeNIED’s initial response to the 2024 Noto Peninsula Earthquake
NIED’s initial response to the 2024 Noto Peninsula Earthquake
 
FAIRMAT - Impact report 2023 by Slidor v2 GS.pdf
FAIRMAT - Impact report 2023 by Slidor v2 GS.pdfFAIRMAT - Impact report 2023 by Slidor v2 GS.pdf
FAIRMAT - Impact report 2023 by Slidor v2 GS.pdf
 
ArtificiaI Intelligence And Sustainability.pptx
ArtificiaI Intelligence And Sustainability.pptxArtificiaI Intelligence And Sustainability.pptx
ArtificiaI Intelligence And Sustainability.pptx
 
如何办理南威尔士大学毕业证书/学位证书/成绩单?
如何办理南威尔士大学毕业证书/学位证书/成绩单?如何办理南威尔士大学毕业证书/学位证书/成绩单?
如何办理南威尔士大学毕业证书/学位证书/成绩单?
 
GFW_Deforestation Exposed Using High Resolution Satellite Imagery to Investig...
GFW_Deforestation Exposed Using High Resolution Satellite Imagery to Investig...GFW_Deforestation Exposed Using High Resolution Satellite Imagery to Investig...
GFW_Deforestation Exposed Using High Resolution Satellite Imagery to Investig...
 
case studies of various types of indian gardens
case studies of various types of indian gardenscase studies of various types of indian gardens
case studies of various types of indian gardens
 
About USGBC | U.S. Green Building Council
About USGBC | U.S. Green Building CouncilAbout USGBC | U.S. Green Building Council
About USGBC | U.S. Green Building Council
 
Featherlite journey towards Sustainability
Featherlite journey towards SustainabilityFeatherlite journey towards Sustainability
Featherlite journey towards Sustainability
 
Featherlite journey towards Sustainability
Featherlite journey towards SustainabilityFeatherlite journey towards Sustainability
Featherlite journey towards Sustainability
 
Toxicity of metallic species, Aresenic.pdf
Toxicity of  metallic species, Aresenic.pdfToxicity of  metallic species, Aresenic.pdf
Toxicity of metallic species, Aresenic.pdf
 
ASI Complaints Data 2023
ASI Complaints Data 2023ASI Complaints Data 2023
ASI Complaints Data 2023
 
Environmental Stewardship and Sustainability
Environmental Stewardship and SustainabilityEnvironmental Stewardship and Sustainability
Environmental Stewardship and Sustainability
 
Resources & Development & types of soil.
Resources & Development & types of soil.Resources & Development & types of soil.
Resources & Development & types of soil.
 
About LEED | The world's most widely used green building rating system
About LEED | The world's most widely used green building rating systemAbout LEED | The world's most widely used green building rating system
About LEED | The world's most widely used green building rating system
 
ASI Complaints Process
ASI Complaints ProcessASI Complaints Process
ASI Complaints Process
 

Hazardous-Waste Management

  • 1. HAZARDOUS WASTE MANAGEMENT BY ARKADEEP DEY TO, DR. PAPIA DATTA Assistant Professor of Chemistry RCCIIT
  • 2. :
  • 3. Inorganic & organic chemicals Petroleum refineries Iron & steel Non ferrous metals Leather tanning Metal finishing .
  • 5.  Aim at providing control  Specify the responsibilities  Regulations governing generators of Hazardous Waste 1. Preparation for transport 2. Manifestation requirements 3. Record keeping and reporting  Regulations governing transporters of Hazardous Waste 1. Notification prior to transport 2. Manifestation requirements
  • 7. HAZARDOUS WASTE LABELING Use of hazardous waste labels: A generator who is accumulating hazardous waste on-site in containers must ensure that the containers are properly marked using hazardous waste labels . Label identifications: There are 3 typical hazardous waste labels that may be used:- Hazardous wastes, Universal wastes & Empty wastes .
  • 9. 1. Waste minimization 2. Detoxification & neutralization of waste by treatments 3. Destruction of combustible waste by incineration 4. Solidification of sludge & ash from step 2 & 3 5. Disposal of residues in landfills
  • 10. :  Helps in resource conservation ,economic efficiency & environmental protection.  The strategies include- • source reduction, • recycling • waste exchange.
  • 12.  • Involves variety of separation techniques • Whenever a waste containing liquid & solid must be treated. Physical processes are:- Screening Sedimentation Centrifugation Flotation Adsorption Stripping Reverse Osmosis.
  • 13.   To make the complete breakdown of HW into non toxic form and  To reduce the hazard of a particular waste Chemical methods are : o Neutralization o Precipitation o Oxidation o Reduction
  • 14.  Neutralization : carried out when the waste contains excessive amount of acid or alkali.  Oxidation : used to destroy toxic cyanide molecule with oxidising agents .  Reductions : Used in the conversion of hexavalent chromium into trivalent chromium before it can be precipitated.  Anodic electrolysis: used for the destruction of cyanide in spent stripping & plating solutions.
  • 15.  Biological treatment:  Different types of microorganisms are used for degradation of specific compounds of HW  Some microbes found in soil & sewage sludge have been tested in the degradation of organic chemicals  Tests have been conducted to degradation of organic chemicals .  Pseudomonas bacteria – benzene, phenol, cresol
  • 16. 3.INCINERATION :  Able to achieve 99.99% destruction & removal efficiency of hazardous components in waste .  Primary products are CO2,vapour & ash .  Sulphur bearing wastes gives off SO2,CO2,H2O when incinerated.  By product of incomplete combustion are sometime more harmful. Types of incinerators : i)Liquid injection system ii)Rotary kilns
  • 17. 4.Solidification or Stabilization :  Convert the waste into an insoluble, rock hard material.  Additive materials used to reduce the mobility of pollutants in the waste.  Certain materials like nickel cannot be destroyed or detoxified by above methods  The residues that are left out are solidified to reduce the leach ability .
  • 18. 5.DISPOSAL METHODS:  The options for disposal include land disposal, underground disposal &deep well injection .  The choice of disposal method should be based on evaluation of economics & potential pollution risks.  To prevent environmental pollution from landfills, it is essential that site c/s are taken into account.

Hinweis der Redaktion

  1. Nxt pg