PROJECT @ CIVIL ENGINEERING

The faculties of the Department are actively involved in conducting research in areas which are sponsored by the industry. Every year 5 to 15 sponsored research projects are undertaken with total value of Rs 100 to Rs 300 Lakhs. The sponsoring agencies are government departments and public sector undertakings such as Ministry of Human Resources Development, Ministry of Urban Development, Ministry of Water Resources, Ministry of Environment and Forests, Department of Science and Technology, Council of Scientific and Industrial Research, Flash Mission, AICTE, ONGC, EIL, CWC and others. These sponsored projects help in developing new design methods, new technologies, new software and new products for the industry. They also enable setting up of new laboratory facilities in the department.



Advanced Oxidation Treatment using RBC for Textile Waste Water.
Treatment of Urinal Waste Water using RBC.
E-coli Removal from STP Effluents.
Evaluation of Status of MSW Management.
Indoor Air Quality Monitoring of Indira Gandhi Airport.
Indoor Air Quality Monitoring of Office and Commercial Complexes.
Material Modelling and Computational Methods for River Valley Projects.
Design Wind Speeds for India.
Modelling of Waterlogging due to Canal irrigation.
Dynamic Response of Anchored Storage System.
Fabrication and Performance Evaluation of Rotating Biological Contactors to treat Urinal Wastewaters.
Evaluation of Computer Control Methods.
Development of Natural Fibre Drains & Erosion Control Blankets.
Seismic Response and Risk Analysis of Pipelines.
Risk based Flood Estimation.
Estimation of Safe Loads on Piles in Compression According to Indian Standards Code of Practice using Insufficient Pile Load Test Data.
A Software for Finite Element Analysis of Underground Structures using Equivalent Material Model.
Mathematical Modelling for High Range Flow/Forecasting (Indo-U.K. Collaboration Project).
New Techniques in High flow Forecasting.
Development of Generalized Software for Unit Hydrograph based Forecast Model and its Applications.
Development of Computer Aided Water Management System using Medium Range Weather Forecasts.
Analytical Investigation of Masonry Infilled Frame Structures for Earthquake Resistant Design.
Dynamic Behaviour of Offshore Studies under Wave & Seismic Forces.
Web Based Intelligent Web Active Theory (Web IIT).
Online Fixation Moments of Structures.

The Federal Clean Air Act

What is the Clean Air Act and why is it important to every one of us? The Clean Air Act is the core and the driving force for all air pollution legislation in the United States. It serves as the framework for a wide-ranging, coordinated federal and state system of regulation that affects everything from our way of life to the national economy. In fact, the Clean Air Act legislation touches nearly every private citizen and corporation in the country.

Ever wondered why the Clean Air Act was created in the first place? Do you need to know the history of the Clean Air Act for a school project? Ever thought about how energy consumption and population growth affect air pollution? Find out the answers to these and other questions in "The History of the Clean Air Act," a multimedia presentation developed by the Foundation for Clean Air Progress.

Slow sand filter for water treatment

Name of Product/ Process
Slow Sand Filter For Water Treatment

Application / Use
For purifying polluted surface water for rural and small community water supplies

Salient features of technology / process
Slow sand filtration is an appropriate method of purifying polluted surface waters, especially for rural and small community water supplies in developing countries. Low turbidity (20 NTU) raw water is easy to treat in one step. Higher turbidities may need some pre-treatment. The method has several advantages: (i) It improves simultaneously the physical, chemical and bacteriological quality of raw water, and (ii) it is simple to construct, easy to operate and maintain at relatively low costs and manageable with local resources and skills.

Raw materials
The quality of product is highly acceptable in terms of turbidity (less than on eNTU) and free from micro-organisms. The dis-infection of treated water is, however, to be practised as a precautionary measure to take care of subsequent contaminations. It is a breakthrough for safe water supply in the villages where sustainable surface waters e.g. canal water systems, lakes, ponds are available.

Machinery / Equipment
Pumps

Status of technology (not commercialized/ commercialised / in production
Commercialised. Working at four full scale village level installations (Maharashtra, Tamil Nadu, Andhra Pradesh and Haryana)

Minimum economic unit and total investment
Rational cost comparison between slow and rapid sand filters has shown that slow sand filters are less expensive to build, operate and maintain than rapid filters upto the capacity of 7-9 mld. The filtration rate is 0.1 m3/hr/m2 sand depth. Approximate cost of 5 mld plant is Rs.23-30 lakh. The cost variation is influenced by design and location parameters

Technology transfer methodology

NEERI will provide broad technical details
Entrepreneur will study the infrastructure vis-à-vis his needs and capabilities and communicate his willingness for commercialisation of technology.
Full details with necessary technical back up will be provided

Technology demonstration cum training facilities
This can be arranged at places where plant may be working. The entreprenur can also make his own arrangement in collaboration with NEERI for construction of a study-cum-demonstration-cum-prototype plant

Product acceptability
Product is highly acceptable to rural community. It does not need continuous electricity supply. The water quality from slow sand filter is highly favoured by the customers

Marketability
Plant is meant for community water supply and all the agencies responsible for community water supply or any agency which wants to promote community water supply are the users of this technology. Demonstration plant in a region will attract other communities to have similar plants in their willages.

Is this technology location-specific? If so, please elaborate
Rural area for community water supply

Any gender-bias in technology utilisation?
No

Is any video-cassette available on the technology?
No

Any other relevant information not covered above
Nil

Terms and Conditions for technology transfer
The entrepreneur is free to start his own enterprise without NEERI’s support. However, if any advice or assistance is needed, NEERI will provide against fee

Name and address of technology generating institute / individual
Director
National Environmental Engineering Research Institute
Nehru Marg, Nagpur 440020
Maharashtra

HISTORY OF GROUND WATER DEVELOPMENT

HISTORY OF GROUND WATER DEVELOPMENT
Water is the main source for the development for all human beings, cattles, and industries. From the History of the Global system we learn that, in ancient days, perennial rivers became the major source of water, and the people, who were far away from the river sources, practiced the utilization of ground water and stored rain water for their sustenance. In India ground water utilization has been practiced for many centuries, in the form of open wells owned by private individuals or farmers or communities, for both domestic and irrigation purposes.
Well irrigation has been in practice for several centuries. To meet shortage of tank/canal waters, cultivators made conjunctive use of ground water through wells. But there was no specific planning behind this, because each source was developed without due consideration of the other.




Efficient planning and management of water sources, for irrigation/industrial and other uses, is an important aspect for the development of any system. Recognition of the fact that ground water and surface water are not separate entities but are two forms of the same total water source, leads to the recognition of the importance of conjunctive water use in the management of ground water - surface water system. But due to the land intended for recharging, the surface water is wasted as run-off into the sea whereas ground water table depletes to an alarming level. This in turn results in the reduction in well yield, drying up of shallow wells, deterioration of water quality, sea water intrusion into the coastal aquifers, increased energy required to lift water from greater depth and its consequent high cost, which becomes uneconomical to poor farmers to continue agriculture. Further many of the agricultural fertile lands have become barren in coastal area like Minjur. (Thiruvallur District), Kuttam, Athisayapuram in Thuthukudi District and Nagapattinam and Thiruvarur in Thiruvarur District of Tamil Nadu. Further about 89 blocks have been identified as overexploited and dark blocks where the balance available ground water potential shows a negative sign. The status of the categorising of blocks are based on the ground water extraction over the various periods is shown in the chart. In order to check this disturbing trend, the rain water is to be conserved.

RAIN WATER HARVESTING STRUCTURES - EZHILAGAM & ANNEXE BUILDINGS

RAIN WATER HARVESTING STRUCTURES - EZHILAGAM & ANNEXE BUILDINGS Back



TWAD Board has also provided rain water harvesting structures in
the adjoining Government Buildings


* 8 nos. of recharge bore hole pits.
* 7 nos. of Dug-cum bore hole pits.
* 3 nos. of filtration pits
* Recharge through 2 nos. of existing open wells.

The total cost of construction of these structures is Rs.1.45 Lakhs

RAINWATER COLLECTED IN THE ROOF IS HARVESTED THROUGH 8 NOS. OF RECHARGE BOREHOLE PITS
7 NOS OF DUG-CUM BOREHOLE PITS 3NOS OF FILTER PITS RECHARGE WELLS THROUGH 2 Nos. OF EXISTING OPENWELLS.

Roof Top Rainwater Harvesting:

In urban areas, the roof top rain water can be conserved and used for recharge of ground water. This approach requires connecting the outlets pipe from roof top to divert the water to either existing well/tube wells/borewells or specially designed wells/ structures. The Urban housing complexes or Institutional buildings have large roof area and can be utilized for harvesting the roop top rain water to recharge aquifer in Urban areas. Table shows the availability of rain water through Roof Top Rain Water Harvesting.

Roof top area (Sq.m)
Rain fall (mm)

100 200 300 400 500 600 800 1000 1200 1400 1600 1800 2000
HARVESTED WATER FROM ROOF TOP (Cum)
20 1.6 3.2 4.8 6.4 8 9.6 12.8 16 19.2 22.4 25.6 28.8 32
30 2.4 4.8 7.2 9.6 12 14.4 19.2 24 28.8 33.6 38.4 43.2 48
40 3.2 6.4 9.6 12.8 16 19.2 25.6 32 38.4 44.8 51.2 57.6 64
50 4 8 12 16 20 24 32 40 48 56 64 72 80
60 4.8 9.6 14.4 19.2 24 28.8 38.4 48 57.6 67.2 76.8 86.4 96
70 5.6 11.2 16.8 22.4 28 33.6 44.8 56 67.2 78.4 89.6 100.8 112
80 6.4 12.8 19.2 25.6 32 38.4 51.2 64 76.8 89.6 102.4 115.2 128
90 7.2 14.4 21.6 28.8 36 43.2 57.6 72 86.4 100.8 115.2 129.6 144
100 8 16 24 32 40 48 64 80 96 112 128 144 160
150 12 24 36 48 60 72 96 120 144 168 192 216 240
200 16 32 48 64 80 96 128 160 192 224 256 288 320
250 20 40 60 80 100 120 160 200 240 280 320 360 400
300 24 48 72 96 120 144 192 240 288 336 384 432 480
400 32 64 96 128 160 192 256 320 384 448 512 576 640
500 40 80 120 160 200 240 320 400 480 560 640 720 800
1000 80 160 240 320 400 480 640 800 960 1120 1280 1440 1600
2000 160 320 480 640 800 960 1280 1600 1920 2240 2560 2880 3200
3000 240 480 720 960 1200 1440 1920 2400 2880 3360 3840 4320 4800

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