Vol. 16 : No. 4 July 2017

Dr. G. Ranganath, FIE

Chairman

Er. R. Ramdoss, MIE

Honorary Secretary

T.N. STATE CENTRE

Rs. 2/-

IEI–TSC–News Bulletin, July 2017 1

Institution of Engineers Institution of Engineers Institution of Engineers Institution of Engineers Institution of Engineers (((((India)India)India)India)India)

From the Chairman’s Desk....

Dear Fellow Engineers,

Greetings to all of you.

I am extremely happy to share with you the momentous occasion of opening the Office Building of the Institution

of Engineers (India), Kancheepuram Local Centre, launching of their Website and releasing the NewsLetter at

Agni College of Technology, near Chennai on 24.06.2017.

The 32nd Indian Engineering Congress 2017 is all set to spread its wings wide open, welcoming all the Engineers

of various disciplines around the country and the globe to its hub during 21-23 December 2017 at Le Royal

Meridian, Chennai under the theme “Innovation in Engineering: Competitive Strategy Perspective”.

It is my desire to increase the membership strength of IE(I), Tamilnadu State Centre to a considerable level and to establish Students'

Chapter in the Engineering Colleges and Polytechnic Colleges in and around Chennai. I seek the support of the Committee Members

to achieve the goals.

I reiterate all our members to strive hard to enroll more new members to strengthen our prestigious Institution. Let us join hands to

make the 32nd Indian Engineering Congress a grand success and to make a memorable event.

Dr. G Ranganath

Chairman

The Institution of Engineers (India), Kanchepuram Local Centre

Inaguration of Office Building, Website and News Letter

24.06.2017

The Institution of Engineers (India) Kanchepuram Local Centre

conducted a workshop on “Emerging Trends in Higher Education”,

Dr. R Venkatesan, Chairman, The Institution of Engineers (India)

Kanchepuram Local Centre welcomed the gathering. Dr. K.M.

Sivakholundu, Vice Chancellor, Indian Maritime University, Chennai

was the Chief Guest of the function. Dr. G. Ranganath, FIE, Chairman,

IE(I), TNSC, Chennai was the Guest of Honour. Workshop lectures were

delivered by the Dr. K.M. Sivakholundu, Dr. G. Ranganath, Mr. Sujith

Kumar, HR, Head Infosys and Er. T.M. Gunaraja, Council Member.

Speakers emphasized that students of today have to enrich their

knowledge and have to equip their technical skills to pursue higher

education and to be placed in top most companies. Er. T.M. Gunaraja,

Council Member, inaugurated the IE(I), Kanchepuram Local Centre

office building, Dr. G. Ranganath, Chairman, IE(I), TNSC launched the

website of the Institution of Engineers (India), Kanchepuram Local

Centre and Dr. K. Sivakholundu released the first newsletter of the

Institution of Engineers (India), Kanchepuram Local Centre. Dr. S.R.R.

Senthil Kumar, Honorary Secretary, IE(I), Kanchepuram Local Centre

proposed the Vote of Thanks. The function ended with National Anthem.

Talk on “Domestic Waste Water Treatment”

14.06.2017

A technical guest lecture meeting was held on 14th June 2017

at 6.00 pm in IE(I), Tamilnadu State Centre auditorium. The topic

of the day was on “Domestic Waste Water Treatment”. Er P R

Seshadri FIE, Past Chairman, IE(I), TNSC welcomed the

gathering and introduced the Chief Guest Dr. A. Abdul Rahman,

Professor, Department of Mechanical Engineering, Sri Sairam

Engineering College, Chennai. Dr. A. Abdul Rahman delivered

the lecture on the above topic with power point presentation.

At present, we face water shortage. In order to overcome the

problem waste water treatment technology has been developed

as water scarcity is mounting day by day. This project is aimed

to solve the problem by treating the waste water discharged from

our residence. Though there was a water problem, we somehow

managed to bring the water for our day to day life. It is the general

practice that after the water is used by the way of bathing, vessel's

cleaning, it is discharged to open space around the building or in

open drain. Initially the let out water in open space helps to grow

plants such as banana, but on long term this process makes the

soil sick.

Presently technology developed help us to treat the waste water

and make it suitable to various useful applications. Considering

a four member family as a single unit, it consumes about 550 liter

IEI–TSC–News Bulletin, July 20172

(Contd. on page 3)

Theme: “Connecting People to Nature”

05.06.2017

WORLD ENVIRONMENT DAY

World Environment Day (WED) is celebrated every year on 5th

June to raise global awareness to take positive environmental

action to protect nature and the planet earth. It is run by the United

Nations Environment Programme (UNEP). The World

Environment Day has been started celebrating as an annual event

on 5th of June since 1973 at the Stockholm conference, Sweden

and then started celebrating annually at global level.

This year, the Tamilnadu State Centre of the Institution of

Engineers (India) observed the World Environment Day on

Monday the 5th June 2017 at the IEI Auditorium, Chennai. At

the outset, Er P R Seshadri, Past Chairman, IE(I),TNSC

welcomed the members present and briefed about the theme of

the day, “Connecting people to nature”. Dr S Virapan, Chief

Operating Officer, Chikara Techmep Pvt Ltd., Chennai was the

Chief Guest.

Dr. S. Virapan delivered his lecture and views on theme

“Connecting People to Nature”. In his presentation, he has given

more unknown information and facts of celebrating World

Environment Day. The same was concluded with fruitful

discussion and comments from specialists and Engineers from

different fields who attended the program.

Glimpse of presentation: Dr. S. Virapan started with introduction

of about World Environment Day, themes and hosted countries

of previous years. Explained about current year's theme

"Connecting People to Nature'. The theme pressurizes every

individual to get outdoors and into nature, to appreciate its beauty

and to think about how we are part of nature and how intimately

we depend on it. He discussed about the host country and how

it was connected with environment. Also he has highlighted some

practical experiences envisaged during site execution related to

environmental issues. The presentation portrayed how people of

different categories depends on environment, connected with

nature, impacts made on environment by humans. Further he has

also given solutions on what way one can protect our

Environment.

The most admiring part of his presentation that he has explained

about the Desludging process by using new technology called

“Geo-tube” with video clips where it is widely used in Malaysia

and Singapore water treatment companies for dewatering the

sludge from septic tanks and Sewage treatment plants.

Er P R Seshadri, Past Chairman, IE(I), TNSC presented the

memento to the Chief Guest Dr S Virapan. Er R Ramdoss,

Honorary Secretary, IE(I),TNSC proposed the vote of thanks.

About 30 members took part in this event.

IEI–TSC–News Bulletin, July 2017 3

per day after use, it disposes 200 liter of waste water and it is to

be reused prudently. In order to achieve this domestic waste water

treatment facility is developed and the efficiently functioning in

the developer's residence.

HOUSEHOLD WASTE WATER TREATMENT :

What is grey water: ‘Greywater’ is the term given to all used

water discharged from a house, except from toilet water (Black

water). Grey water includes shower bath, wash basin, kitchen sink,

dishwasher, washing machine and laundry tub water. This water

is called ‘grey’ water because it turns grey if stored for a while.

It also becomes quite smelly if stored for a day or so.

Grey water is sometimes called ‘sullage’. Toilet water is generally

called 'blackwater' or ‘sewage’. In most literature, both are

grouped together as ‘wastewater’. This convenient label is

misleading because grey water is very different from blackwater,

and neither should be wasted. Both can be re-used for garden

irrigation, but require different methods and levels of handling

because of their fundamental differences.

Grey water is far easier, safer and cheaper to re-use than black

water, Houses with composting toilets have no black water, and

should be encouraged. Greywater contains what is washed down

the drain, and so varies from house to house. For most houses it

is soap, shampoo, toothpaste, shaving cream, food scraps, cooking

oils, dishwashing detergents, laundry detergents, hair and lint.

Normal use of these products appears to do no harm to garden

soils and plants if greywater is used for garden irrigation.

Composition of waste water:

Source: Tooth paste, shampoo, moisturizer, shaving gel,

detergents, soaps, hair spray, after shave, lotion, cologne,

moisturizer, etc. Sodium bicarbonate, sodium monofluoro-

phosphate, calcium phosphate, saccharin, washing soda, glycerin,

peppermint extract (tooth paste). Cocamide DEA (shampoo,

moisturizer), propylene glycol (shaving gel), sodium lauryl

sulphate/fluoride (shampoo), benzaldehyde (shampoo, detergent,

shaving cream, bar soap), benzyl acetate (hairspray, after shave),

benzyl alcohol, camphor, ethanol, ethyl acetate, limonene, alpha

pinene, g-terpinene, terpineol (shaving cream, lotion, skin

moisturizer, cologne, detergents, etc.), acetone, methylene

chloride, ?-citronellol,? -myrcene, ?-phenyethyl alcohol, p-

dichlorobenzene are some of the chemicals in the composition of

waste water in addition to the kitchen organic wastes.

The Construction Detail: The tank is known as anaerobic baffed

reactor a closed container made up of FRP, a corrosion resistant

material. It contains baffle arrangement indicating stirred tank

reactors that aids Zig- Zag water flow in vertical plane. There

is also place in the system for boarding and lodging of anaerobic

bacteria by coating. The tank has sufficient free board to give

space for tapping gasses formed.

Hence, hydroponic system is selected and installed in which

floating macrophytes have been used to take nutrients present in

the waste water to reduce the organic load.

Technology: The waste water allowed for hydraulic retention

period overnight that helps the anaerobic bacteria to consume the

organic material present in the waste water. Some time fungi

species such as Aspergillus sp, Cladosporium sp and mucor sp

have given considerable success yet these are not considered in

the present system. A negligible amount of fuel gas is formed

during treatment get dissolves in the water. The treated water

satisfies the standard disposal norms. however, the partially treated

waste water by recovering 60 to 70% BOD is collected into a

plastic 30 litre capacity keeping submersible pump. The water is

circulated in the hydroponic system which contains plants. The

water floating plants as such as Eichhornia, Wolfia, Pistia,

Spirudela and Lamna were collected from the site of Cooum river

bank and elsewhere used in the hydroponic system. The partially

treated water is used for circulation instead reversible osmosis

(RO ) water. The submersible pump is used to recycle the water

into the hydroponic system. Thus, waste water after treatment is

reused and excess treated water is recharged into the ground.

Uniqueness:

So far we have various electrical and electronics gadgets. This

one presently installed is a new addition to household can provide

water which is in great demand. We have waste water treatment

plan for capacity in the range of 1 MLD, 5MLD, 20MLD.

However, such treatment unit require huge investment in terms

of crores, engagement of technical personal, periodic dosage of

chemicals, sumps and pumps and consumption of power. Whereas

this system is cost effective, easy to install in addition simple to

operation and maintenance. It recovers precious water from own

source of used water. Yes there is no more waste water it is really

a useful water. This technology really makes the city smarter .

The advantages are listed below:

• This is a cost effective technology.

• The treated water is nutritious. Hence suitable for plants.

• No production of sludge, Hence disposal of sludge is totally

avoided.

• Reduces load on public sewage treatment units.

• Efficient use of water and avoids carriage of waste water.

• Treated water can be useful for flushing, vehicle washing and

floor cleaning.

• Recharge of ground water is possible through out the year.

• Soil sickness is avoided thereby pleasant surroundings of

residential space is possible.

Er P R Seshadri, FIE, Past Chairman, IE(I), TNSC presented the

memento to the Chief Guest Dr A Abdul Rahman . Er R

Ramdoss, Honorary Secretary proposed the vote of thanks. About

40 members participated in the program.

(Contd. from page 2)

Printed by Er R Ramdoss and Published on behalf of The Institution of Engineers (India), Tamilnadu State Centre,

19, Swami Sivananda Salai, Chepauk, Chennai 600 005 and Printed at Sunitha Printers, 193, Peters Road, Chennai 600 014. Editor: Er R Ramdoss

IF UNDELIVERED RETURN TO:

The Institution of Engineers (India)

Tamilnadu State Centre

19, Swami Sivananda Salai, Chepauk, Chennai – 600 005.

Phone: 044-25360614 / 25369433

E-mail: ieitamilnadu@gmail.com / tnsc@ieindia.org Website: www.ieitamilnadu.org

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Licensed to post without pre-payment

Posted on: 10th July 2017

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DATE OF PUBLICATION: 1st of every month

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IEI–TSC–News Bulletin, July 20174

Lecture: 6.00 p.m. Venue: IE (I) Auditorium (Unless mentioned otherwise) Tea: 5.45 p.m.

15th July 2017 Pithavadian Memorial Lecture on the theme “Low Cost Housing” by Dr S R R Senthilkumar, Principal, Agni College

of Technology, Chennai.

10th & 11th Aug. 2017 All India Seminar on “Use of admixtures and construction chemicals in current construction industry”.

21 – 23, Dec. 2017 32nd INDIAN ENGINEERING CONGRESS

TECHNICAL PROGRAMME FOR JULY 2017

FORTHCOMING EVENTS