INDUSTRIAL WASTEWATER TREATMENT

     Industries uses water for many activities. These water is then discharged out. Discharged water contains various impurities like chemicals, metals, suspended particles, etc. All these things are to be treated or removed from the water before they are to be discharged in any water body.

    If the water is not properly treated, then the impurities will act upon the various elements water causing adverse effects on aquatic life. This in turn will affect us through food chain. So its our prime duty to see that the water which is being discharged into the various water bodies follows the proper standards as prescribed by the pollution control board.

     There are fews sequential steps to e followed to treat the waste water.

STEP 1:

     SCREENING

       In this all the coarse sized solids are been removed. Along with the coarse, the floating and other suspended materials of considerable sizes are removed.

STEP2:

     PRIMARY TREATMENT

       Here mainly settling process takes place. The water is allowed to settle for a while and then are treated with microbes. These microbes feed upon the wastes colloidal particles suspended in the water.

STEP3:

     SECONDARY TREATMENT

       In this process the water is made suitable for almost all purposes, except for drinking. This is mainly done by chemical process. This includes various advanced oxidation process either used separately or with combinations. This will give a better quality if water.

STEP4:

     TERTIARY TREATMENT 

       Here fine treatment like reverse osmosis, membrane filtration, etc. are being carried out in order to make the water suitable for drinking.

Mostly if the water is to be discharged into water, then we can stop at step3.

So please treat the water before discharging it into any of the water body. By doing this we can save our earth & natural resources.

THE ADVERSE EFFECTS OF CLIMATE CHANGE ON ARCTIC

The changes in the climate is found to be drastic & dramatic. In the early olden days there could be certain climatic pattern over a period of time. For instance 3 months rainy season, 3 months autumn, 3 months winter& 3 months summer. Now unfortunately we hardly have these seasons existing. Its raining anytime, the temperatures have gone to extremes both winter and summer. The most affected by this climatic change is animals. They could not adapt to such changing conditions and get perished.

Such kind of similar situation exists in the arctic region. The arctic region has become one of the warmest zone on the earth. Here the summer temperature is increasing year after year. Its expected that during the period from May to June snow formation takes place. Its found that the snow formation has reduced by around 20%. Here the summers are being increased and winters are being decreased by a weak or so. All such unusual changes has taken place in the recent one or two decades.

This also tells that the temperature will increase another 3 to 7 degrees centigrade very soon. Also the the winter period and the thickness of snow is reducing at a greater velocity. Its expected that the glaciers will lose 10-30% of there total mass.

The present rate of increase of green house gases shows a clear path that by 2100 the rise in the sea level would be from 0.9m to 1.6m. This increase in the sea level is found to be twice of that predicted by the UN's panel on climatic change, IPCC in 2007.

Its never late, so its our duty to reduce cordon dioxide emission into the atmosphere. We have to save our earth & natural resources.

GREENHOUSE GAS ALMOST BECOMING DANGEROUS

     The carbon dioxide which contributes maximum to the green house gases is found to be increasing its concentration in the atmosphere. It has rosed up to 455 parts per million (Intergovernmental Panel on Climate Change Report). This level is termed to be the tipping point.

     The amount of carbon dioxide in the environment has already crossed the threshold limit. This means that already the life on the earth has been in danger. The rate at which the carbon dioxide is increasing is enormous. So we have to take some strict action, measures as early as possible. The level of carbon dioxide in the atmosphere rose because of our activities. So very are very much responsible to sort it out.

     It was found that in the 90's the emission rate of carbon dioxide was less than 1% per year, but in 2000's it was near 3.5% per year. This shows at what rate we are emitting carbon dioxide into the atmosphere.

     This tremendous increase in the carbon dioxide emission rate has lead to around 75% of the problems faced on the earth either directly or indirectly.

     These problems include sudden rainfalls, aperiodic changes in the season, price hikes, health problems, food scarcity, loss of habitat, etc.

     So its our prime duty to reduce the carbon dioxide emission into the atmosphere and also take some actions to reduce the already existing carbon dioxide in the atmosphere.

    By doing these things we can save our earth & natural resources.  

  

THE 3 R's REQUIRED TO SAVE OUR PLANET

There are the 3 R's that is followed properly and effectively we can save our planet. Till now you would have guessed those 3 R's, which i m talking about. Ya its REDUCE, REUSE & RECYCLE.

REDUCE:

Reduce the wastage of all most everything. Even small things wastage will directly or indirectly contribute to the loss of resources. So its our prime duty to reduce the wastage as far as possible. This could save energy thats required to produce it, the resources required to manufacture it, etc. 

REUSE:

There are some things that can be reused, instead of buying new one. For instance, you can carry cloth bag from home and avoid taking plastic bags from the shop, this could will reduce the problem of pollution caused by plastics and will save huge amount of energy and resources.

RECYCLE:

Most of the solid wastes are dumped in the open spaces. These contains all sorts of solid wastes varying from the domestic waste to industrial wastes. These includes metals, glass, some plastics, which can be recycled. These can be recycled and can easily be used for some other purpose. This way we can save both energy & resources. 

Hey friends this all seems to be very small thing, but if everyone of us follow there will be tremendous change that will be seen. So to save our earth everyone has to contribute there level best. 

TIPS TO REDUCE THE SOLID WASTE

Now a days solid waste is becoming a great problem for us. 

The human population is growing up rapidly, along with it the tremendous growth in the technology produces huge million tons of solid wastes. 

There's no proper method being followed for the solid waste disposal. Its our duty to follow them properly. 

Here are the some methods of solid waste disposal.

1. Sanitary disposal

2. Incineration

3. Composting

Sanitary disposal:

Out of these sanitary disposal method seems to me the most effective method of solid waste disposal. Here an open ground is taken and small pits of 2m in width and depth is dug. In this pit the solid wastes are dumped in a particular manner.

This contains alternative layers of solid wastes and earth. The waste and earth are dumped in the ratio 4:1 and is tightly packed. At the top about 50cm thick of earth is filled in order to prevent the rodents to enter. These pits should be kept undisturbed. The pits are dug by providing approximately 1m space throughout. These grounds can be made in garden and other recreation place.

Incineration:

Its burning of solid wastes. There's a huge problem here. This is not applicable for all solid wastes. Various metals and non combustible materials are to be removed. Along with this is produces many undesirable gases which are harmful to the environment. 

LATEST GREEN TECNOLOGY TO REMOVE OIL SPILLS

 Scientists are experimenting an innovative, green and novel technique to remove the oil spills. 

This will not damage the environment in any way. 

For more information click below and you can be clarified. 

The link below will give the video relating to this.

click on this 

SOLAR POND - NEW METHOD TO ENTRAP SOLAR ENERGY

As everyone knows that the sun is the largest renewable sources of energy. Its energy is available in abundant in nature. This all everyone knows. But we had a problem to entrapping this abundant energy. Also the equipments used for its trapping was found to be very costlier.

Now an method that has emerged a long back suits to be suitable to some extent. Its simply the solar ponds. This idea was researched 1987 itself. This pond offering processed heat to the dairy industries from 1993. This is located in Bhuj, Gujarat.

Here the process is very simple. Everyone knows that when you heat water it becomes light and travels upwards. The pond's temperature remains at the atmospheric temperature.This prevents the heat loss from the pond to the atmosphere.

Also salt is add to this pond, which prevents the light vapor to reach the top. The heat of the pond is trapped in it. This salt makes the vapor heavier & prevents  it from rising.

There are three zones available, Upper convective zone where the salt concentration is least. Non convective zone there the salt concentration is intermediate & Lower convective zone where the salt concentration is found to be the maximum.

Its also found that the water cannot move from one zone to another, thereby acting as an insulator which not only allows the sun's energy to reach the bottom of the pond but also doesn't allow them to go off. This way it entraps the sun's energy & this can be used for various processes.

It can be made anywhere required. It will be economical if we construct these solar ponds where we the salt is available.

This way we can save our earth & natural resources. If you all have any of such innovative ideas to save our earth. You can publish then in the comments.a

SWEDEN INITIATES TO HELP TO SAVE OUR EARTH

Sweden initiates with a greatest ambition to achieve oil free economy by the year 2020. Also at the same time it has decided not to increase its nuclear plant.

It has decided to ride on renewable source of energy in order to compensate the ever increasing oil prices & the global warming.

Its very clear that the oil reservoirs are going to extinct, then finding the other alternative way will be difficult all of a sudden.

Its better that we try to act upon such problems from now onwards as Sweden has initiated. All have to come together and raise their hands to use the ever lasting renewable resources. There by the global warming can also be controlled.

This is the time to act on this, or then it would be too late in saving ourselves.

All we can do is to use the solar energy as effectively as we can, as this is the next choice after non renewable fuels. If this is developed  to a greater extent then two major problems of this globe can be reduced.

The two problems can be solved or reduced  are:

1. Energy problems.

2. Environmental problems.

So everything is in our hands, we have to save our earth & natural resources.

GREATEST EFFECTS OF GLOBAL WARMING CAN BE FELT BY SMALL VARIATION IN THE GLOBAL TEMPERATURE

Humans have exploited the earth to such an extent, that from now onwards even if the average global temperature increases slightly, its effects are going to be worst.

Effect of global warming is  almost similar to the rubber band that has lost almost its elastic property & even a small pull from now will break it.

There is an average increement of around 2 degree centigrade of average global temperature. As the human exploitation is going on a rapid rate, the average temperature might increase to even 4 degree centigrade very soon.

This in turn will increase the amount of carboin dioxide in the atmosphere. Increase in concentration of carbon dioxide will lead to global warming & the chain of environmental problems continues.

The humans are not aware that they are also being affected indirectly by there activities. 

For example:

1. Due to excess of pollution the average human life span han gone down considerable. He is dieing very quickly when compared to the previous generations.

2. Due to their activities lands get submerged under the oceans which again affect them.

So nothing is late, just come together & help to save our earth & natural resources.