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Wednesday, August 05, 2015

Rain water Harvesting System











manual on rain water harvesting Central ground water board

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web site for rain water harvesting


Rain water Harvesting System

Broadly rainwater can be harvested for two purposes
Storing rainwater for ready use in containers above or below ground 
Charged into the soil for withdrawal later (groundwater recharging)

Source: A Water Harvesting Manual For Urban Areas

From where to harvest rain

Rainwater harvesting can be harvested from the following surfaces

Rooftops: If buildings with impervious roofs are already in place, the catchment area is effectively available free of charge and they provide a supply at the point of consumption.
Paved and unpaved areas i.e., landscapes, open fields, parks, stormwater drains, roads and pavements and other open areas can be effectively used to harvest the runoff. The main advantage in using ground as collecting surface is that water can be collected from a larger area. This is particularly advantageous in areas of low rainfall.

Waterbodies: The potential of lakes, tanks and ponds to store rainwater is immense. The harvested rainwater can not only be used to meet water requirements of the city, it also recharges groundwater aquifers.
Stormwater drains: Most of the residential colonies have proper network of stormwater drains. If maintained neatly, these offer a simple and cost effective means for harvesting rainwater.

Whether to store rainwater or use it for recharge:

The decision whether to store or recharge water depends on the rainfall pattern and the potential to do so, in a particular region. The sub-surface geology also plays an important role in making this decision.

For example, Delhi, Rajasthan and Gujarat where the total annual rainfall occurs during 3 or 4 months, are examples of places where groundwater recharge is usually practiced. In places like Kerala, Mizoram, Tamil Nadu and Bangalore where rain falls throughout the year barring a few dry periods, one can depend on a small sized tank for storing rainwater, since the period between two spells of rain is short. Wherever sub-strata is impermeable recharging will not be feasible. Hence, it would be ideal to opt for storage.

Source: A Water Harvesting Manual For Urban Areas
In places where the groundwater is saline or not of potable standards, the alternate system could be that of storing rainwater.

Beyond generalisations, it is the requirement that governs the choice of water harvesting technique. For example, in Ahemadabad, which has limited number of rainy days as that of Delhi, traditional rainwater harvesting tanks, known as tankas, are used to store rainwater even today in residential areas, temples and hotels


Source: https://www.facebook.com/greenyatra?fref=photo

Monday, August 03, 2015

ENVO Entrepreneurship defined

 

I am always like this. Someone who jumps off a cliff and builds a plane on the way down
just to see what happens....lets do it first

Entrepreneurship. Do you want a Consultancy company for yourself. We can help you establish such a one.Write to me at saleemasraf@gmail.com for all help.

Have a thick skin.Accept failure, again and again.You have to be opportunistic and adaptive. If you find a dead end, either go around it or try something new.Whatever you do, act when the opportunity presents itself, “That’s entrepreneurship defined.”

The World Only Cares About What It Can Get from You.
There is a reason why surgeons get more respect than comedy writers. There is a reason mechanics get more respect than unemployed hipsters.People have needs and thus assign value to the people who meet them

we Indians are weak in execution.We need to realize the need and practice of gud project management. Form a group of competent Managers,Give them responsibilities and review the project from day One.

Sadaqah Jariyah (ongoing charity) in Islam

15 Rewarding Ways for Sadaqah Jariyah (ongoing charity) in Islam
Sadaqatul jariyah is ongoing charity (continuous rewards) received by us (for good actions and deeds), that will not only benefit us in this life, but will continue to benefit us after our death.
Abu Huraira (RadhiAllahu ‘anhu) reported: Allah’s Messenger ﷺ as saying: When a man dies, his acts come to an end, but three, recurring charity or knowledge (by which people) benefit, or a pious son, who prays for him (for the deceased). [Sahih Muslim – Book 13 – Hadith 4005]
Below given are some good actions and deeds that which will outlive you Insha Allah.
1. Donate and/or actively participate in building of a Mosque.
2. Building or donating to build an Orphanage.
3. Raising, full or part sponsoring an orphan.
4. Teach someone to recite Quran, and everytime they recite quran, you will get hasanat, even after your death. And if your student teaches quran to another person, and everytime this other person read Qur’an, you still will get hasanat from his recitation, even after you have long died until the end of this world.
5. Give copies of the Holy Quran and each time they read from it, you will receive Hasanat.
6. Donating to build a school. When the students use the knowledge they receive from the school, you get hasanat, even after you have died.
7. Give away Islamic reading materials.
8. Teach someone to recite Dua and/or Dhikr ( Remembrance of Allah ) and each time it is recited, you will gain Hasanat.
9. Share via online or give Dua or Quran CDs and every time it is recited you will gain Hasanat.
10. Donate wheel chair to Hospital and when sick persons use it you will gain Hasanat.
11. Building or donating to build a Dispensary, Hospital
12. Help a child to continue his or her Education.
13. Donate to dig and build water wells or construct water tanks and when people use this well or tank you will receive Hasanat.
14. Plant trees or donate for this cause, each time people or animals sits under the shade or eats from these trees, we will gain hasanat, even after you have died.
15. Place a water cooler in a public place. Each time people drink water from it, you will gain hasanat.
(Source: http://www.islamquote.com/2013/04/03/sadaqat-ul-jariyah/)