HAZARDOUS WASTE MANAGEMENT

By: Pharra Anthea O. Reales

HAZARDOUS WASTE MANAGEMENTDEFINITION:

Any residues or combination of residues other than radioactive waste which by reason of its chemical reactivity or toxicity, explosive, corrosive or other characteristics causes potential hazard to human or to the environment.

Raw materials

Processing and manufacturing Products

Solid and hazardous wastes generated during

the manufacturing process

Waste generated by households and

businesses

Food/yard waste

Hazardous waste

Remaining mixed wastePlastic Glass Metal Paper

To manufacturers for reuse or for recycling Compost Hazardous waste

management Landfill Incinerator

Fertilizer

SOURCES:• Inorganic and Organic Chemicals Wastes• Petroleum Refineries• Iron and Steel• Non Ferrous Metals• Leather Tanning• Metal Finishing• And from any other Commercial and Industrial Wastes

Solid Wastes Polluting a River in Indonesia

Hundreds of Millions of Discarded Tires in a Dump in Colorado, U.S.

RISK TO HUMAN:• Acute Effects• Violent Illnesses• Chronic Effects• Carcinogenic• Cancer• Mutagenic• Death

TO ENVIRONMENT:• Decays• Mutagenic

Source: http://www.britannica.com/technology/hazardous-waste-management

HAZARDOUS WASTE CLASSIFICATION

• Ignitability• Corrosiveness• Reactivity• Toxicity

RECYCLING

RECYCLING• Converts waste into a reusable material.• Reuse• Reprocess• Reclaim• Recover

Source: dictionary.reference.com/browse/recycle

WASTE REDUCTION AND MINIMIZATION

BENEFITS OF RECYCLING

TREATMENT

PHYSICALAND

CHEMICALTREATMENT

PHYSICAL AND CHEMICAL TREATMENT

• Separation Techniques• Breakdown of Hazardous Waste into Non-Toxic form• Reduce Hazard of Wastes

Physical Process are: Screening, Sedimentation, Centrifugation, Flotation, Adsorption and Stripping.

Chemical Process are: Neutralization, Precipitation, Oxidation, and Reduction.

ELABORATING MORE ABOUTPHYSICO-CHEMICO TREATMENT

• Sony Download\6.2 with notes final amended.ppt

BIOLOGICAL TREATMENT

BIOLOGICAL TREATMENT• Uses microorganism for degradation.• Microbes in soil and sewage sludge tested in

degradation of organic chemicals.• PCBs degradation using pseudomonas and

flavo bacterium• Pseudomonas bacteria- benzene, phenol,

cresol.

WATER RECLAMATIONis a process by which

wastewater from homes and businesses is cleaned using biological and chemical treatment so that the water can be returned to the environment safely to augment the natural systems from which it came. It is used today as both an aquifer and stream enhancement strategy.

Source: https://geographywiki.wikispaces.com/Don+Pipping

INCINERATION

A Waste-to-Energy Incinerator with Pollution Controls