WATER TREATMENT OF BORING WATER FOR IRON & HARDNESS

DESIGN DATA:

Bore Well Water Quality

SL Parameter Unit Value
01 pH 7
02 Turbidity NTU 10
03 Total Alkalinity ppm 60
04 Total Hardness ppm 180
05 Calcium ppm 135.07
06 Magnesium ppm 14.83
07 Total Iron ppm 1.7
08 Chloride ppm 50
09 TDS ppm 295
10 Sulphate ppm 10

Treated Water Quality

SL Parameters Unit Value
01 Service Cycle Hrs 12
02 O.B.R. Cu mtr 900-1000
03 pH 6.8-7
04 Turbidity NTU <1
05 TSS ppm <1
06 Total Hardness ppm <5
07 Total Iron ppm NIL
08 Sulphate ppm 9-10



FLOW CHART:

In--- Online Lime Doser --- Aeration Tank with rotary type air blower --- Pump---Iron Filter ---- Softener—Treated Water Tank

UNITS OF THE SYSTEM PROPOSED:

Sr No Item Specification Qty Amount(Rs.)
1 Online Lime Doser with storage tank 01
2 Aeration tank RCC Tank 01
3 Rotary type air blower aeration grid in aeration tank 01
4 Main Water pump from aeration tank to Iron Filter 1W+1S
5 Pipe and Fittings LOT
6 Iron removal filter 80.00 CuM / Hr 01
7 Water Softener, 1000 CuM / Regn. @ 180 ppm rwh, 80 CuM / Hr 01
8 Treated Water Tank RCC Tank 01 OPTIONAL

NOTE:

The iron removal depends upon dissolved oxygen present in water. Please make sure that the raw water has at least 0.4 ppm dissolved oxygen. Failing which, an aeration system will be added to the Iron removal plant as mentioned in item no 2 & 3 .

So, testing of water sample is the first step.


Thanks & Regards,


Yours Truely,
Envo Projects

(saleem asraf)

9899300371





















TECHNICAL DATA SHEET : Iron Removal Filter


SPECIFICATIONS
- One mild steel welded construction pressure vessel fitted internally, with raw water distribution and filtered water collection system, supporting legs / brackets etc. Necessary manholes and nozzles for inlet, outlet, air release etc. provided on the shell, coated internally with two coats of epoxy paint and externally with two coats of red iron oxide / zinc chromate primer.
- One set of frontal pipe and valves network for operation and control.
- One charge of fresh under bed ( filter media ) topped CATALYST IRON REMOVAL MEDIA

INSTRUMENTATION
- Pressure gauges and sample points at inlet and outlet.

TECHNICAL DATA
Sl.No. Description Data
1. Plant Model : APRO 3000 IRFD
2. Unit diametre mm : 3000
3. Unit H.O.S. mm : 1500
4. Pipe work : MS ERW Black Class ‘B’ all flanged
5. Valves : C.I. Butterfly
6. Size mm NB : 150
7. Filter media : Natural gravel and quartz sand
8. Adsorbent media : CATALYST IRON REMOVAL MEDIA
9. Quantity of adsorbent media Ltrs. : 7000

OPERATIONAL DATA
1. Max. working pressure kgs. / cm2 : 3.5
2. Min. working pressure kgs. / cm2 : 1.0
3. Max. rate of flow m3 / Hr. : 100.0
4. Min. rate of flow m3 / Hr. : 10.0
5. Backwash flow rate m3 / Hr. : 150
6. Backwash period minutes : 15-20
7. Rinse flow rate m3 / Hr. : 50.0
8. Rinse period minutes : 5-10
9. Treated water quality : Dissolved Iron less than 0.1 ppm










TECHNICAL DATA SHEET : DOWNFLOW WATER SOFTENING PLANT


SPECIFICATIONS
- One mild steel welded construction pressure vessel fitted internally with strainer plate at the bottom, raw water and brine distributors at the top and externally with necessary manholes, nozzles for inlet, outlet, air release, resin outlet etc. The vessel coated internally with two coats of anticorrosive epoxy paint and externally with two coats of red iron oxide / zinc chromate primer.

- One open MSRL tank of adequate capacity for brine preparation and measurement. One no. air distributor laid at the bottom for air agitation. The brine tank provided with valves for drain, brine outlet.

- One set of frontal pipe and valves network for operation and control. Pipe work fabricated from MS ERW Black Class ‘B’ pipe and valves to be C.I. diaphragm.

- One set of regeneration assembly comprising of power valve, ejector, brine valve and brine suction line etc. all incorporated into the main pipe work.

- One set of salt saturation system comprising of air blower, air distributor and the interconnecting pipe connection.

- One fresh charge of Ion Exchange Resin ( INDION - 220 Na / Imported Resin ).

- One pressure gauge at inlet and outlet each. One sampling point at outlet.

TECHNICAL DATA
Sl.No. Description Data
1. Plant Model : APRO – 1850 - SDZ
2. Plant Diametre mm : 1850
3. Plant H.O.S. mm : 2600
4. Brine Tank Capacity Ltrs. : 3500
5. Pipework and Valves size mm NB : 150
6. Quantity of Resin Ltrs. : 4000

OPERATIONAL DATA
1 Maximum Treatment Flow m3 / Hr. : 100.00
2 Minimum Treatment Flow m3 / Hr. : 10.00
3 Designed Treatment Flow m3 / Hr. : 80.00
4 Regenerant Required : NaCl - Common Salt
5 Quantity Required per Regeneration : 600 kgs.
6 Treated Water Hardness : Below 5 ppm
7 Net output per Regeneration m3 : 1000 M³ at 180 ppm

(MANAGEMENT) Delegating work? 5 must-avoids you must know

Delegating work? 5 must-avoids you must know

Anil T http://www.rediff.com/getahead/2007/jan/16delegate.htm

Though people do try to delegate smartly, it often becomes difficult to do so. As usual, this can be analysed down to a simple list of easily avoidable mistakes. These include:

1. Not defining a clear 'follow-up and finish' schedule

"Typically, all I get in the e-mail is an FYA (For Your Action)," says Vaibhav Sankule, who works as an IT Analyst with a leading technology firm.

His case epitomises the prevailing trend to treat a task as an 'out of sight, out of mind' issue. Delegating a task is only the beginning; you need to keep track of it until it is executed.

"To do this well, we need to ask ourselves three simple questions," says Pune-based corporate trainer Asha Chander, who conducts regular sessions on time management.

When and how frequently should I do a status check?
What is the end date for the task?
What are the parameters against which I will assess the work to see if it has been satisfactorily done?
"If you can do this, even in a simple excel sheet, and review it frequently, your tracking will improve dramatically," she adds.

2. Dictating, not delegating

Those used to running the show by themselves often end up micromanaging when they delegate to others. The best way to assess the degree of handholding required is by matching the person with the task. As a general rule the lesser the experience, the more explicit the delegation. It also makes sense to monitor things closely if the situation is changing rapidly.

"We monitor our new employees extensively to ensure they get the process right initially," says Ashwin Mascerenhas, who works with a banking BPO. "However, after about three to four months, we just do a daily review of the tasks and follow up on the pending ones".

3. Delegating to the wrong person

However much we globalise, Indian firms, and Indians in particular, tend to be protocol conscious. More importance is given to who the task is being delegated too rather than what is being delegated.

"That means if you follow the wrong path, your tasks might become low priority, even though they may have a high business impact. Conversely, if you go through the right people, or have the right person forwarding your request, things get done in a jiffy," says Sankule.

"You also need to be careful to delegate to someone who is your equal or junior to you in the hierarchy. If you send it to someone higher, even unknowingly, chances are they will consider it an affront. Even if you are lucky, and that does not happen, it might look like an escalation and not a delegation to your counterpart in another division."

4. Delegating what you can eliminate

As a thumb rule, you should follow the 'eliminate, automate, delegate sequence' for routine tasks.

Even if the task is mundane and boring, it's good to give credit to your team members and encourage them for even small improvements.

"When everyone today is a knowledge worker and well-educated, a person can easily differentiate between a growth opportunity and something that has been dumped on him/ her," says Chander.

5. Playing passing the parcel (sub-delegating and cross-delegating unnecessarily)

The party game Passing The Parcel gives an interesting insight into the practice of delegation. In the game, people sit in a circle and pass a parcel around until the music stops. When it does, the person with the parcel has to perform a punishment -- usually a comic task -- given by the other players. He/ She has to then leave the game. After multiple such rounds of music, the last person who remains wins.

Sometimes, a hot issue in a company is treated in a similar manner. It just gets passed around, until the senior management steps in. In the meanwhile, the matter is needlessly degated from A to B and onwards because nobody wants to be holding this particular 'parcel' when the 'music stops'.

Honestly, in some situations, such a situation is unavoidable. But if you really care about adding value, it helps to stop the unnecessary rounds. Speaking up will result temporary unpopularity but, in the long run, if you are at the right place, it will be much appreciated.

As you move higher and the scope of work you handle grows, delegating will become even more importance. Understanding these don'ts will go a long way in helping you master this skill.

Summing up, Mascerenhas adds, "The corporate hierarchy is like a game of Snakes And Ladders. Except here, instead of rolling the dice, it's the phone number that you dial (to delegate) that makes the difference and decides how you will grow."

(WATER TREATMENT INDIA) New technology to remove arsenic from water developed

http://www.hinduonnet.com/holnus/218200611131220.htm

New technology to remove arsenic from water developed

New Delhi, Nov. 13 (PTI): An inexpensive technique to remove arsenic from drinking water has been developed, a finding that could be of help to millions of people living in India and other developing countries.

It is through nanotechnology -- the manipulation of materials so tiny that they are measured in nanometers or one billionth of a metre -- that the hazardous elements in drinking water could be removed.

This discovery of ultra-small specks of rust or crystals of magnetite by scientists at Rice University Centre for Biological and Environmental Nanotechnology (CBEN) in Houston has been described in the journal 'Science' where it has been mentioned that thousands of cases of arsenic poisoning each year are linked to posioned wells.

The researchers said arsenic contamination in drinking water is a global problem and while there are other ways to remove arsenic, they require extensive hardware and high-pressure pumps than run on electricity.

Scientists said their approach involves nanoparticles of iron oxide that can be produced cheaply by heating mixture of rust and vegetable oil.

Iron can bond with arsenic and hence could help remove arsenic from drinking water by simply adding rusty and then removing the bonded partciles with a magnet.

After making crystals of magnetite, they found that when they were smaller than 12 nanometers, 5,000 times smaller than the width of a human hair, they were 100 or 1,000 times more effective at removing toxic contaminants like arsenic from water than exisiting filters.

According to Vicki Colvin, the center director and the lead author of the study, magnetic particles this small were thought to only interact with a strong magnetic field.

"Because we had figured out how to make these particles in different sizes, we decided to study how big magnetic field we needed to pull the particles out of suspension. We were surprised to find that even hand-held magnets could move the nanoparticles," he said.

In an effort to find out the risks of the arsenic residue being consumed, scientists also plan to undertake field tests.