P4068-TD-141 REV B Technical Data for Water Supply for Building

WEC Engineers & Constructors Pte Ltd

Tan Son Nhat Petrol Commercial Joint Stock Company

PROJECT:

Construction of Aviation Fuelling Facilities at Tan Son Nhat International Airport

CLIENT:

CONSULTANT:

SGS VIETNAM LTD

CONTRACTOR:

No. 10 Bukit Batok Crescent, The Spire, #14-06 Singapore 658079 Tel: (65) 6316 5038, Fax: (65) 6316 4218

TITLE:

TECHNICAL DATA FOR WATER SUPPLY FOR BUILDING

B 15-11-13 ISSUED FOR APPROVAL LYS

B 12-11-13 REVISED AND ISSUED FOR APPROVAL LYS

A 04-07-13 ISSUED FOR APPROVAL LAU

REV DATE DESCRIPTION APPROVED

DOCUMENT NO.: REV.:

P4068-TD-141 B

TAPETCO SGS WEC

DOAN THI MAI HUONG Chairperson

TO DUC TIEN Project Manager

LEE YEOW SIANG Director

INTERPRETATION ON THE PLAN OF DRILLING WELL

CONSTRUCTION & WATER

TREATMENT SYSTEM

Capacity of Water Treatment System (For domestic water) :2.5 to 3 m3/hour

A. DRILLING WELL:

I. PREPARATION:

1. Selection of the location and construction field:

• After considering the outline of construction position, a field visit will be proceeded to

locate the appropriate construction site as demanded.

• When there is a suitable position, working conditions are surveyed such as: roads to

the location of wells, electrical system and water supply system (for construction),

v.v…meeting to the construction schedule.

2. Conveyance of drilling equipment to site and preparation of drilling:

• As the drilling equipment are in the suitable position, setting up and calibrating accurately

drilling rig will be done in order to avoid crooking of borehole during drilling. Then ditches

for circulation of drilling humus are dug and this is also the place for a preliminary

evaluation of well’s stratigraphic structure

II. DRILLING:

• Drilling 2 holes with D.60mm diameter from 19m to 50m.

• Using rotary driller with clay as drilling solution, the drilling hole with D.60mm diameter is

done. While drilling, the geological and stratigraphic characteristics of drilling site should

be observed to assess generally the stratigraphy structure and hydrogeology through the

drilling mud material taken up by the bentonite solution with 1.3 of density.

• Here we shall proceed from 0 m to around 50 m for drilling because some drilling material

will not be all taken out from the borehole after drilling and in which they will be deposited.

• There are 2 wells at each plot (plot 1 and 4). The location of wells will be selected around

the underground water tank. Distance between 2 wells will be around 2-3 meter.

• Pumping water for experiment: When it is clear, water will be pumped up by a sinker

pump for physical and chemical tests of exploiting wells and using for subsequent works.

B. WATER TREATMENT SYSTEM:

I. RUNNING WATER: Capacity around 2.5to 3m3/h

* We propose to apply QCVN 01:2009/MOH quality standard instead of FEED quality

standard.

Proposed standard:

+ QCVN 01: 2009/MOH: Water for drinking standard by the Ministry of Health.

1 Màu sắc(*) TCU 15 A

2 Mùi vị(*) - Không có mùi, vị

lạ

A

3 Độ đục(*) NTU 2 A

4 pH(*) - Trong khoảng

6,5-8,5

A

5 Độ cứng, tính theo CaCO3(*) mg/l 300 A

6 Tổng chất rắn hoà tan (TDS)(*) mg/l 1000 B

7 Hàm lượng Nhôm(*) mg/l 0,2 B

8 Hàm lượng Amoni(*) mg/l 3 B

9 Hàm lượng Antimon mg/l 0,005 C

10 Hàm lượng Asen tổng số mg/l 0,01 B

11 Hàm lượng Bari mg/l 0,7 C

12 Hàm lượng Bo tính chung cho cả Borat

và Axit boric

mg/l 0,3 C

13 Hàm lượng Cadimi mg/l 0,003 C

14 Hàm lượng Clorua(*) mg/l 250

300(**)

A

15 Hàm lượng Crom tổng số mg/l 0,05 C

16 Hàm lượng Đồng tổng số(*) mg/l 1 C

Proposal :

• Once the wells are completed and can be used, the water will be pumped into water

storage tank and pass through the water treatment system. First, the water will be pumped

through the raw treatment system in order to aerate enabling to improve preliminarily

water.

• Water is pumped into the water tank (14m3

of Plot 1 and 24m3

of Plot 4). In there,

solid sediment is separated down. In sediment tank, the flows and characteristic of water

has stabilizing.

• The water is pumped into Rough processing filter (phase 1) to reduce suspended

solid, flavor, color, toxic element…. Then water is pumped into Pure processing filter

(phase 2). Purification treatment system has duty to go on treating if first step (phase 1) is

not completely treated.

• After 2nd

processing, treated water will continue to lead to 3rd

filter (phase 3). In

phase 3, water will be ionized and contained in composite tank.

• Water from the tank (after phase 3) will be pumped into the RO system (reversed

osmosis membrane) by high pressure pump. RO system will adjust salt and minerals,

remove microbial (bacteria) and continue through ultraviolet lamp (UV) to treat sterilized

again. After RO membrane (size 0.0001 micron), water is fully complied with TCVN 01:

2009/ BYT Health of Ministry. After filtering the water will be pumped into the clean

water tanks in the top of building, then serving for domestic purpose.

• The treatment system will be put on top of sediment tanks, therefore the structure

of those tanks will be re-calculated to ensure it can defend the weight of system for long

time.

II. NOTES:

• With filter tank system, the quality of output water needs to be checked daily of

continuous filtration. The valves on the filter tank are operated for washing the filter to

ensure the quality of output water. Washing of filter and checking on the discharge of

sludge from sedimentation tank can be combined to create favorable conditions for users.

* Please find out about QCVN 01:2009/MOH quality standard in Reference Part of this document.

Flow Chart

List Equipment:

No. NAME/MATERIALs ORIGIN Unit

s

Num

bers NOTE

I. RAW TREATMENT (physical, chemical, color, smell, taste,..)

01

Pump for the source water

Treatment

Capacity : 6m3/h , 3HP

Volt : 380V-50Hz,

Model: HMS8-50

- SEOCA Brand

- Italy

Technology

- China assembly

Set 04

3HP

02

Raw treatment Filter – raw solid

filter

- Pentair Brand

- Britain

Technology

- China assembly

set 02

18-65 inch

by

Composite

03

Raw treatment Filter - Reduction

color, smell, toxic element

- Pentair Brand

- Britain

Technology

- China assembly

set 02

18-65 inch

by

Composite

04

Soften Water Treatment Filter -

soften and mineralization

- Pentair Brand

Britain Technology

- China assembly

set 02

18-65 inch

by

Composite

05 Resin to soften water Britain liter 400

06 Material for reducing iron Russia bag 04

07 Activated carbon for reducing

smell, color Vietnam bag 12

08 sand Vietnam bag 08

09 Filter pebblestone Vietnam bag 18

II. TREATMENT BY RO SYSTEM

01 Refine Filter column - 20 inch 5

micro USA set 02

02

Booster pump

capacity : 6m3/h , 2HP

Volt: 380V-50Hz

Model HMS8 - 40

- Seoca Brand

- Italy

Technology

- China assembly

set 04 2HP

03

Main pump for RO

capacity: 6m3/h , 5.5HP

Volt: 380V-50Hz

Model: VMS4 - 190

- Seoca Brand

- Italy Technology

- China assembly

set 04 5,5HP

04

RO Membrane: RO 8040 size

0.0001 micron to recduce 99,99%

metallic impurities water and

GE Brand

USA set 04

bacteria

05

electromagnetic boot system

- Mitsubishi 20A : 4 pcs

- Mitsubishi 12A : 12 pcs

Japan pcs 16

06 Electric box (PANEL) size -

300x500x220 Vietnam pcs 02

07

Ample Meter A

Model: BE 96

Brand: BEW

Taiwan

Pcs

02

08

Voltage Meter V

Model: BE 96

Brand: BEW

Taiwan

Pcs

02

09 Flow Meter

Model: LZM – 25Z Taiwan

Pcs 04

10 Flow Control Valves

Model: 200 CF 8M Taiwan Pcs 02

11 Frame – stainless steel Vietnam Pcs 02

12 UV lamp

Model : UV S36RL Vietnam

CANADA Pcs 02

III. PIPE AND TANK

01

Pipe and fitting – PVC ( including

connection between water

treatment system and water tank on

top building)

Binh Minh Brand –

Viet Nam ls 02

02

Booster pump

Capacity: 6m3/h , 2HP

Volt : 380V-50Hz

Model HMS8 - 40

- Seoca Brand

- Italy

Technology

- China assembly

set 04 2HP

03 Water Tank by stainless steel-

Volume 2000 liter ( Hwata) - Hwata-Vietnam set 02

04 Composite Tank - Intermediate

tank - Volume 2000 litre

Dai Thanh brand -

Viet Nam pcs 02

IV. DRILLED WELLS

01

Drilled wells: depth 19-50m

Pipe Ø 60 mm thick 2.8mm

Come with header pump: 2,5 HP

Volt : 380V-50Hz

Brand: Hoang Huy

Vietnam pcs 04

V. Operating house

01

Operating house

Size 3000x5000x2500mm

Material: steel frame, steel sheet

wall, square column 40, square

transom 30, Steel sheet roof

Vietnam Ls 02

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