Grey water System For Domestic Use : Design & Cost - Consultant Required
Submitted by Rajan on November 4, 2009 - 12:16
I am looking for Grey water system for my house to recycle laundry, bath water for flushing the toilet. Is there any system available in the market.
Its Ground + 1 Floor above, with total of 3 houses. Ground Floor 1200Sqft and First Floor each house 700 Sqft.
1. Users: Ground Floor - 5 members
First Floor Total - 6 members
Total members per unit: 11
2. Laundry water 3 houses - Around 900Lts per week
Bathing water 3 houses - Around 1000Lts per week
I want to use this water for flushing the toilets.
3. Current system: Have a septic tank of size L:9Ft x W:6Ft x D:7Ft : I am diverting only the Toilet waste and flushing water to this tank.
Also have a Soak Pit: L4Ft x W: 4 Ft x D: 7 Ft, I am diverting all the bathroom water, Kitchen water and the Washing machine water to this pit.
The issues I have are:
1. When we divert the water to the soak pit, the soil below is clay and the process of absorption of the water is very slow. This creates a bad odor & it the water has to be pumped out every 2 months.
2. Most of the people in this area, divert the water to the adjacent vacant plot.
3. It would take 5 yrs or more for the underground sewage system to be implemented in our area.
This has prompted me to look at implementing a grey water recycling system. I would also like to know how much it would cost and the maintenance/plumbing requirement for it. Do pass on contact information of qualified people who would be able to assess the requirements and provide advice.
Regards
Rajan
Comments
1. Grey water System for Domestic Use
Dear Rajan,
A home treatment system for GWT is possible, say the water in use per day is 1100 to 1500 lit res.
A house-hold treatment plant can be done to get around 800 to 1200 litres of processed water; the cost would be say 40 to 45,000/- per kl. i.e say 60 to 70,000/- and if with some aesthetics 10 to 15%...say within Rs.1.0 Lakh.
What is the plot size...processed water can be used for growing plants/ trees. 800 liters can water/ irrigate 300 sqm of greens, lawn, plants and trees, have peripheral trees, creepers, and some plants of plantain variety etc.
All the water is to be consumed in greens, or at colony greens etc, if you are positive enough for the above notings then a lot can be done.
It’s not good to leave all the waste-water into vacant- plots...what happens when it is raining..? Where is the site located?
Also send a PPT on the same subject for more info on WWT plants and its placement in plots, etc. Access here: DEWATS PPT
All the best,
Er. Ajit Seshadri
Secretary and Head- Environment & Energy
The Vigyan Vijay Foundation
New Delhi-110 045
2. Hi: Thanks for the reply.
Hi:
Thanks for the reply. Area of the plot is 2400Sqft, of which the built up area of 1500Sqft. We have planted some flowering plants (3 to4 )in the front and Banana plant at the backyard.
There is a septic tank, Sump, rainwater harvesting pit in the plot area, so hardly there is any space for effective gardening. My solution was to reuse the water for Flushing toilets & gardening to the few plants which we have.
Please clarify the below;
What would be the monthly fixed maintenance cost apart from the initial investment..?
Will the water be odour free ?
Would it involve any type of filters, if so life of the filters?
Is this system effective?
Regards
Rajan
3. DEAR RAJAN, WE TREAT
DEAR RAJAN,
WE TREAT DOMESTIC WASTEWATER BY AN UNIQUE OXIDATION TECHNOLOGY WHICH OXIDIZED ORGANIC, INORGANIC AND HEAVY METALS, IF INTERESTED PLEASE FFEEL FREE TO CONTACT US AT nanosciences@hotmail.com or call 9845016035
Madan Iyengar
nanosciences@hotmail.com
www.ozosciences.com
+91-9845016035
4. Grey water system for dometic use- design and consultant require
Cnn you spare about 25-30 sq ft of soil area in the garden area in one place or more which get of at least moderate amount of sunlight daily? Then I have a simple method using just water loving plants which will clean the used water.
The process operates on gravity, does not use any power or chemicals and is practically self-sustaining. installation cost will be negligible. If interested, you can buy a copy of book costing only 150 rupees where you will find exhaustive details of the method. You can thereafter get free guidance in installation and subsequent trouble shooting should the need for it arise. it has been working in several apt complexes since many years. The treated water has been certified by the Chennai Metropolitan Water Supply and Sewerage Board and can be used safely for flushing, gardening and vehicle washing.
Indukanth Ragade (isragade@yahoo.com)(044-2834-3506)
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