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There are many difficulties that are to be faced while using biomass.I have collected them and are printing them here...

-2ndGeneration biofuels:Cellulosicfeedstock (wood, crop residues and grasses, paper -from municipal waste) the technology is yet to reach acceptable levels of economic viability

Direct combustion

􀂄Pyrolysis(Destructive distillation)

􀂄Anaerobic digestion

􀂄Alcoholic fermentation

􀂄Gasification

􀂄Carbonization (Conversion into charcoal)

􀂄Oil extraction and trans-esterification

Difficulties

􀂄Low concentration of biomass per unit area of land and water

􀂄Scarcity of land for food drops and energy

􀂄High moisture content that make transportation expensive and energy conversion inefficient

􀂄Land degradation arising from charcoal harvesting

􀂄Haphazard wood harvest causes severe environmental damage reduced supply of woodfuel

􀂄Pertinent need to improve the efficiency of wood burning stoves to minimize the concentration of pollutants environmental concerns

􀂄Assessment of health effects of emissions from wood stoves and biomass conversion technologies

June 2008

􀂄Competition with other land uses such as food production

􀂄Reduction of natural plant and animal species diversity due to monoculture -less stable ecosystem

􀂄Invasiveness of certain plant species

􀂄Deterioration of soil quality due to continuous use of pesticides and fertilisers

􀂄Increase in the prices of food products

􀂄Air pollution from the combustion of woodfuel(Low combustion efficiency and therefore high emissions of Carbon monoxide, particulate matter especially during the cold seasons (high concentration of wood stoves);

􀂄Polycyclic Organic Matter (POM) emissions such as Benzo(a)pyrenewhich are known carcinogens are the most dangerous components

􀂄CO emission from the equipment used for harvesting, chipping and transport equipment

􀂄Use of wood instead of coal significantly reduces SO2emissions from coal fired plants

􀂄Corrosive effect of sulphurousand sulphuricacid from the reaction of H2S with water.

􀂄Air pollution: fugitive dust from raw material and product handling; organic vapoursfrom the distillation process; volatile organic compounds; odoursfrom fermentation tanks

􀂄Safety: Explosiveness of the gas in confined environments (leaks)

􀂄Odourfrom H2S in biogas

􀂄Decentralisedethanol production may not be favourablefor monitoring environmental conditions and enforcement of environmental standards

16th June 2008 21

􀂄Impacts on water sources by the leaching of biomass storage pile

􀂄Energy requirements, wastes from the distillation process and hazards associated with the use of toxic chemicals

􀂄Damage of aquatic ecosystems arising from stillage(High biological and chemical oxygen demand)

􀂄Reduction of feedlot pollution arising from run off from cattle feed lots (bacteria, suspended and dissolved solids, chemical and biological oxygen demand) especially for aquatic systems

Waste disposal problems

􀂄Effluent from biogas systems contains high concentrations of inorganic salts, H2S and NH3or even heavy metals.

􀂄Elimination of drawbacks of animal manure (disposal problems)

Removal of crop residues from land

􀂄Increased erosion and flow of sediments into surface waters

􀂄Decrease in productivity

􀂄Increased flood potential

I hope this information is handy.......

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A workplaces procedure is a step-by-step description of how a particular task is to be accomplished in a workplace.

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Most hazardous materials can be shipped if properly packaged, marked, labeled, and documented. Some hazardous materials may not be shipped by air, and a few cannot be shipped at all.

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Paint can be a hazardous substance, or not, depending on what it is made of.

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It's determined by weight. Gasoline is Hazard Class 3, which requires placards to be displayed if more than 1,000 lbs. of it is being transported. One gallon of petrol weighs between 5.8 and 6.5 lbs, so you'd be looking at 153 to gallons (roughly) before placards had to be displayed.

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Permeation of a protective material is when something you need protection from is able to pass through some protective material to reach you without seriously altering the structure of the protective material. If a hazardous material is able to permeate something you are using for a protective barrier, it is not a good choice for a barrier.

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Typically, NO. They are water soluble, and with the exception of alcohols, few water soluble things are flammables.

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Porous simply mean a material has pores and allows fluid to pass.

There are many thousands of such materials.

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This question should be answered only by someone adequately trained in DOT transportation requirements, who is also knowledgeable of the hazard characteristics of the material being transported.

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Class 1 materials are explosives.
Materials that have an explosive hazard are in Hazard Class 1.

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Blood is hazardous because of bloodborne pathogens. A person can contract Hepatitis B, Hepatitis C, and HIV/AIDS from contact with blood through any mucous membrane such as their eyes, nose, mouth and broken skin. In doctors offices and hospitals blood is considered a biohazard. First responders such as police, paramedics and firemen are very careful when dealing with blood at a scene. Housekeeping personnel in some cases and even YOU can be in a situation where blood is a factor and should not be taken lightly. If you happen to be the first person on the scene of an accident where someone is bleeding and you choose to help them, call for help FIRST (police, paramedics, 911, etc.) then use clean rubber gloves if available to protect yourself. More information can be found by doing a web search for "bloodborne pathogens". You may even consider a Red Cross training course on CPR, first aid and bloodborne pathogens to learn more and make yourself prepared.

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the quantity left of the threat of life that had been left behind

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a

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No, attempting to drink liquid oxygen would result in very serious damage and possible death.

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Green

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The amount of college credit you receive depends on the job you do. More technically involved jobs generally require more training, and therefore offer more credit. It can be as low as 28, or go higher than 70!

Keep in mind, that's just from the training courses you take automatically to do your job. While serving, you can still take college classes, and they will be free!

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Yes you should wear goggles and gloves as a safety precaution so you don't burn yourself and so the ashes don't blowup into your eyes. In addition if you do not know all the materials you are burning you should also consider wearing a Respirator. (Only after you have been Fit Tested)

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Plutonium is an extremely toxic material and supplementary radioactive. See the link below.

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Hazardous materials are identified in vehicles and rail cars by posting square on point placards on each side and end of the rail car or vehicle.

True. For a list of specifics see the related link below.

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Shot Study Notes for the test of Anti Narcotics Through FPSC are Available:

Course Outline :

1- Investigation Chapter of Criminal Procedure Code

2- Basic knowledge of "Qanun-e-Shahdat Order"

3- Basic Knowledge of Pakistan Penal Code

4- Basic Knowledge of Narcotics Substances Act,1997

5- Effects of illegal / drug money on economy of country

6- Potential hazards of drugs for general public

7- International ramification of drugs smuggling from Pakistan

8- Major drug Producing & consumption countries of the world

9- Types of drugs and international trafficking routes

Cover all above mention outlines of the syllabus in comprehensive and short way for prepare the test in short time

Contact :

03457266122

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Acid is a safety hazard because it corrodes metal, potentially resulting in breakage or leaks of whatever may be contained in a metal drum. It is also a safety hazard because it can corrode living tissue, causing acid burns and potentially killing the victim if there is enough exposure.

Acid is a health hazard because some forms of exposure to airborne acids can result in removal of the enamel from teeth, corrosion of the septum of the nose, irritation or other damage to the eyes and lungs, etc.