Preview

Waste

Good Essays
Open Document
Open Document
637 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Waste
Waste Minimization Techniques
Mike Lancaster
Green Chemistry Network

Waste Treatment
Cost of Waste
PREVENT
TREAT & DISPOSE
DISPOSE

Cost of Waste
Legislation

1900

2000

1

Waste Minimization Techniques
•
•
•
•

Prevention is better than cure
Get it right at the R&D stage
Chemists do not have all the answers!
The answer lies within a multi-disciplinary team
–
–
–
–
–

chemists chemical engineers production business health, safety, environment specialists

– control engineers, environmental scientists, consultants/ etc

Table 2 Role of Teams in developing a new process selection
Chemist
Yield
Purity
Selectivity
By-product
identification
Mechamism

Chem.Eng.
Flow sheet
Heat & mass transfer Process costs
Equipment
choice
Product
isolation

Production

SHE

Operability
Emissions
Convenience for Waste treatment shifts Operator safety Regulatory compliance Materials
Operator safety handling Business
Production cost
Waste disposal cost Product packaging Product liability
Product quality

2

Waste & Production
Emissions to atmosphere

Inputs: reactants solvents auxiliaries (impurities)
Market

Production
Recycle

Products

Discharges
(treatment)

By-products for reuse elsewhere Emissions to land

Emissions to water

Waste Reduction Possibilities
Emissions to atmosphere

Inputs: reactants solvents auxiliaries (impurities)
Market

Production
Recycle

Products

Discharges
(treatment)

By-products for reuse elsewhere Emissions to land

Emissions to water

3

Waste Reduction Possibilities
• Inputs
– eco friendly solvents, high purity reagents, recyclable auxiliaries, lass hazardous materials

• Production
– change time, T& P, reactor types, mixing, heat transfer
– new route, appropriate cleaning

• Discharges
– reduce water volume, improved scrubbers, waste water clean up, mineralization of organics

• By-products
–
Continue Reading
View Writing Issues

You May Also Find These Documents Helpful

  • Good Essays

    Discuss The Extent To Which Sustainability Can Be Achieved
    • 1634 Words
    • 7 Pages

    Discuss The Extent To Which Sustainability Can Be Achieved

    With reference to waste management, discuss the extent to which sustainability can be achieved. (40 marks)…

    • 1634 Words
    • 7 Pages
    Good Essays
    Read More
  • Best Essays

    Write a Recommendation Report in Which You Compare Two Water Provision Methods for an Arid Region of Your Choice
    • 2907 Words
    • 12 Pages

    Write a Recommendation Report in Which You Compare Two Water Provision Methods for an Arid Region of Your Choice

    References: Anderson, J. 2000. The environmental benefits of water recycling and reuse. Water Science and Technology. 3(4), 1-10…

    • 2907 Words
    • 12 Pages
    Best Essays
    Read More
  • Good Essays

    vilas pol chemist
    • 534 Words
    • 3 Pages

    vilas pol chemist

    It is better to prevent waste than to treat or clean up waste after it has been created. Energy requirements of chemical processes should be recognized for their environmental and economic impacts and should be minimized. If possible, synthetic methods should be conducted at ambient temperature and pressure.…

    • 534 Words
    • 3 Pages
    Good Essays
    Read More
  • Good Essays

    Wasteful Society
    • 357 Words
    • 2 Pages

    Wasteful Society

    America is one of the most wasteful countries in the world, and we ignorantly do not care. As a people, we promote the use of our resources in a manner that places style in front of efficiency. Marketing and advertisements play a huge part in shaping what Americans deem efficient. Even though we are given the information to make the educated choice when it comes to efficiency, we always opt for convenience.…

    • 357 Words
    • 2 Pages
    Good Essays
    Read More
  • Good Essays

    Industrial Chemical processes
    • 723 Words
    • 3 Pages

    Industrial Chemical processes

    In our present world, there are thousands of chemical processes that are being used to produce products that benefits our daily lives. Industrial Chemical processes are used for “transforming raw materials into useful commercial products for society”. (Dr. Philip Britz-Mckibbin Industrial Chemistry: CHEM 2013) Examples of industrial chemical processes include distillation, smelting, disinfection, and Pyro processing. Even today, scientists in our industry continue to find, develop, and create new products with the experimentation of the chemical processes. Without these chemical processes, we would probably not be able to live the way we do today. Today, distillation is one of the most widely used methods worldwide.…

    • 723 Words
    • 3 Pages
    Good Essays
    Read More
  • Powerful Essays

    Critical Appraisal of Life Cycle Assessment
    • 1716 Words
    • 6 Pages

    Critical Appraisal of Life Cycle Assessment

    In literature LCA is defined as a systematic approach to analyse the environmental burden through the whole life cycle of a specific product or service that in turn helps to reduce that environmental burden by triggering areas of improvement so that better technologies, product materials and process options can then be adopted (Roy et al. 2009; ISO 1997, 2006a; The Finnish Environment Institute, 2010). The Society of Environmental Toxicology and Chemistry (SETAC) and the international standards ISO14040-14044 divide LCA into four phases. These are: the definition of the boundary of the production and processing system, the scope which guides analysis of the inventory and major processes that then identify the environmental impacts of the production system, and finally the their categorisation and interpretation (Roy et al., 2009). In recent research LCA is declared as comprehensive and holistic in nature as it considers production systems in…

    • 1716 Words
    • 6 Pages
    Powerful Essays
    Read More
  • Better Essays

    Pollution Prevention for Tannery Industry
    • 730 Words
    • 3 Pages

    Pollution Prevention for Tannery Industry

    Solvents. The suppliers of finishing products have developed water-based lacquers with significantly lower volatile solvent contents. These materials are now widely accepted as quality products, and their use is strongly advised.…

    • 730 Words
    • 3 Pages
    Better Essays
    Read More
  • Powerful Essays

    Suspended Solid Experiment
    • 2738 Words
    • 11 Pages

    Suspended Solid Experiment

    References: [1] J.R. Backhurst, J.F. Richardson, J.H. Harker. 2001. Chemical Engineering: Solutions to the Problems in Volume 1 (Coulson and Richardsons Chemical Engineering). Butterworth-Heinemann: pg68. [2] Jo Allan Beran. 2010. Laboratory Manual for Principles of General Chemistry. John Wiley and Sons: pg61. [3] Srinivasan. 2009. Environmental Engineering. PHI Learning Pvt. Ltd.: pg29. [4] Sherwood C. Reed, Ronald W. Crites, E. Joe Middlebrooks. 1998. Natural Systems for Waste Management and Treatment. McGraw-Hill Professional: pg62 [5] Mackenzine L. Davis and David A. Cornwell. 2008. Introduction to Environmental Engineering, 4th edition. Mc Graw Hill: pg 357, 391-400. [6] Citing internet sources: Retrieved on 17 October 2011: http://www.waterresearch.net/watrqualindex/index.htm…

    • 2738 Words
    • 11 Pages
    Powerful Essays
    Read More
  • Good Essays

    mb0044 assignment
    • 773 Words
    • 4 Pages

    mb0044 assignment

    • Waste disposal – For example, for process industries such as, paper and sugarcane industries, facility for disposal of waste is the key factor.…

    • 773 Words
    • 4 Pages
    Good Essays
    Read More
  • Good Essays

    Waste and Pollution
    • 3872 Words
    • 16 Pages

    Waste and Pollution

    Pollution, contamination of Earth’s environment with materials that interfere with human health, the quality of life, or the natural functioning of ecosystems (living organisms and their physical surroundings). Although some environmental pollution is a result of natural causes such as volcanic eruptions, most is caused by human activities.…

    • 3872 Words
    • 16 Pages
    Good Essays
    Read More
  • Powerful Essays

    Solid Waste Planning an Ddisposal
    • 21432 Words
    • 86 Pages

    Solid Waste Planning an Ddisposal

    Session 2: Collection of Existing Data, Analysis of Results and Issues Identification . . . . . . . . . . | 9 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Collection of Existing Data, Situation Analysis and Issues Identification (Step Two) . Identification of Stakeholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Determination of Decision Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Collection of Existing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Information on Solid Waste Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Disposal of Solid Waste . . . .…

    • 21432 Words
    • 86 Pages
    Powerful Essays
    Read More
  • Powerful Essays

    E Waste
    • 9433 Words
    • 38 Pages

    E Waste

    The twentieth century marked the beginning of use of equipments like radio, television and a ground breaking discovery - the first computer. Innovation and development in the field of science and technology and an open global market resulted in availability of a range of products at affordable prices, changing the very lifestyle of societies. New electronic appliances have infiltrated every aspect of our daily lives, providing society with more comfort, health and security, with easy and faster information acquisition and exchange.…

    • 9433 Words
    • 38 Pages
    Powerful Essays
    Read More
  • Good Essays

    E Waste
    • 823 Words
    • 4 Pages

    E Waste

    Life, nowadays has become so fast and luxurious that we can not imagine it without the sophisticated electrical and electronic items.…

    • 823 Words
    • 4 Pages
    Good Essays
    Read More
  • Good Essays

    Solid Waste
    • 496 Words
    • 2 Pages

    Solid Waste

    The group at risk from the unscientific disposal of solid waste include – the population in areas where there is no proper waste disposal method, especially the pre-school children; waste workers; and workers in facilities producing toxic and infectious material. Other high-risk group include population living close to a waste dump and those, whose water supply has become contaminated either due to waste dumping or leakage from landfill sites. Uncollected solid waste also increases risk of injury, and infection.…

    • 496 Words
    • 2 Pages
    Good Essays
    Read More
  • Good Essays

    Wasteful society
    • 789 Words
    • 2 Pages

    Wasteful society

    Waste is one of the major environmental concerns in the 21st century, each year, we are generating millions of tons of waste in our homes and communities. Part of that enormous amount of waste is generated through the construction, renovation, and demolition of homes. The most effective way to stop this number from growing, is by preventing waste in the first place, by reducing the amount of materials we use and reuse materials where possible. Recycling stations will be set up in every suburb and purchasing goods made from recycled products are also important strategies.…

    • 789 Words
    • 2 Pages
    Good Essays
    Read More

Related Topics