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Wednesday, December 29, 2010

WASTE MANAGEMENT


Types of recycling:

        Recycling Programme generally involves drop-off silts or curbside pickup. Some cites & towns use drop-off sites, where residents can deposit their recyclables on the way to work or to the grocery store. Drop-off centers can be successful only if containers are conveniently placed as for example at train station or near parks.
          Curbside recycling, in which recyclables are periodically picked up trash pullers at the curb, is by far the most successful type of recycling Programme.
           It is also possible to collect raw trash & ship it to resource recovery centers, where it is separated by machines or people. This tech. also known as end-point-separation. It is more costly than source separation.

Tuesday, December 21, 2010

WASTE MANAGEMENT

RECYCLING-EDITION-1
Mainly we produce two type of waste: solid waste & liquid waste. We can use the solid waste by the process of recycling & uses the liquid waste by the process of composite.


Recycling has become a very popular strategy all over the world for resource use and resource conservation.
 Recycling refers to the return of materials to manufactures, where they can be melted down or chopped up, refashioned into original finished material & then incorporated into products.


PROFITS- The main advantage of recycling are-


1. Recycling clearly overcomes future resource shortages.


2. It reduces energy demand.


3. It reduces pollution.


4. It saves water.


5. It demands solid waste disposal & incineration.


EXAMPLE- Japan is a world leader in recycling. At present, about 50% of its waste materials are composite & recycled.

Saturday, December 18, 2010

ENVIRONMENTAL IMPACT ASSESSMENT

WRONG PROCESS, Edition-2
In conventional method environmentalist did not assess how much Sm3 of Oxygen lost due to the cutting of tree. Due to this decrease of O2, how much amount of carbon di-oxide remains unabsorbed and how much it contributes to the global warming. In the old process of assessing environmental impact, they did not assess economically how much suffered due to the destruction of natural eco-system.

Suppose for implementation of INR (RS) 10, 00,000 manufacturing project, we roughly required 1acre of land, we have to cut trees, which extended to an area roughly say 30,000 sq.ft. The cost of wood that are obtain by cutting of tree can assess by anyone. But the amount of Oxygen supply stop due to the cutting of this 30,000 sq. ft. of land full of tree will cross INR (RS) 60,00,000 and the excess Co2 remain unabsorbed is extra, which results in global warming.

Therefore, by assessing the environmental impact economically, then only we diversely reach to the people to apprehending them about the environmental impact properly. Rather than say big words of commitment or write big journal on environment impact, we have to reach to the common people and build awareness.

For that purpose, we have to change the process by which now the environmental impact assess. It is a wrong process.

Tuesday, December 14, 2010

PLANT TREE & SAVE ENVIRONMENT

The ministry of Environment and Forest, India reported that nation wide emissions could reach anywhere from 4 billion to 7.3 billion tonnes by 2013. Every Indian would have to plant about 18 trees a year to offset that damage, according to carbonify.com carbon di-oxide calculator.

Saturday, December 11, 2010

ENVIRONMENTAL IMPACT ASSESSMENT


WRONG PROCESS, Edition-1

According to the conventional way, assessing the environmental impact for implementing a project (whether it was residential or industrial or any other commercial projects) is not as effective as is to be.

                          In conventional way, environmentalist first compare between at present environment condition and future environment condition to be after implementation of proposed project on that particular area or region only.

Saturday, December 4, 2010

PROBLEM OF ARSENIC IN WEST BENGAL,INDIA

Edition-2
Recently, a survey revealed by the School of Environment Studies, Jadavpur University that 78 wards of Kolkata municipality is under the Arsenic pollution. Out of this 78 ward, 32 wards contain Arsenic percentage dangerously greater than 50 micrograms/liter, which is more than tolerance level of West Bengal Govt. & far more than the World Health Organization (WHO), where the level is 10 micrograms for one liter.
                      Recently two people died from Arsenic contamination in drinking water at south Kolkata. However, there was no reaction among the administration or NGOs. Still today, Kolkata (one of metropolitan city in India) whole population did not receive processed Ganges water. A good percentage pf people are totally depends on tube well or ground water, from were the heavy metal enters into human body.