ENVITECHPERKASA

WASTE WATER & WATER TRE ATMENT

1 Introduction

Over the past 18 years have proven to be

a reliable partner to Industries in provid-

ing cost - effective Water and Wastewater

Treatment Plants on Turnkey basis.

We provide a comfort factor for our

clients by continuously cultivating strong in

- house expertise. As well as latest

technology from our various principals.

The range of expertise in the company

covers Chemical, Biological, Mechanical,

Civil and Electrical Engineering.

Water and Wastewater Treatment

involves technology. Technology is for-

ever evolving. In the interest of keeping

abreast with new and better technolo-

gies, we remain in close working rela-

tions with our principals from the US and

Europe. Although for most applications

our local team is more than equipped to

provide effective solutions, we offer the

additional bonus of being able to draw

on decades of international experience

from our foreign Principals.

2 Man Power

Board of Directors

With various experiences

and Backgrounds,

Supported by 30 over professional staff

with various experties and experiences

3 Scope Of Work

The scope of work includes :

- Problem identification through testing,

analyses, and pilot trials

- Process design which caters to

the client’s specific needs

- Detailed engineering design

- Project management

- Supply of materials and equipments

- Construction of civil works

- Installation

- Start - up and commissioning

- Training operator

and factory staff

- Project financing, BOT, and

BOO

4 How We Operate

EPC Contracts for Waste Water Treatment

We provide a complete range of the following

procces plants:

1. Activated sludge – Extended Aeration plant

2. Sequencing Batch Reactor (SBR)

3. Trickling Filter

4. Aerated Lagoon

5. UASB Anaerobic process

6. Dissolved Air Flotation plant (DAF)

7. Sludge Dewatering systems

8. Sewage Treatment plant

– Extended Aeration

– Trickling Filter

– SBR

– Sludge Dewatering

5 How We Operate

EPC Contracts for Water TreatmentWe provide a complete range of the

following process plants:

• Conventional potable water treatment

plant – for PDAM & Industry

• Seawater & brackish water

Desalination – for process and utility

water

• Membrane filtration systems

- Microfiltration, Ultrafiltration

– for process or utility water

• Ion Exchange systems

– Demineralisers, Softeners,

De-alkalisers

• Mixed Bed Polishers – for industrial

process water

The above systems consist of some of

the following unit processes:

• Presedimentation basins

• Coagulation & Flocculation systems

• Clarifiers

– Sludge Blanket Conical type &

Flat-bottom type

– Lamella plate type

– Circular type with scraper

• Sand Filters - Gravity and pressure type

• Anthracite & Multimedia Filters

• Activated Carbon Filters

• Iron Removal Filters

• Chlorination plant - gas or liquid

• Reservoirs, Pumping stations

• SeaWater Reverse Osmosis (SWRO)

• Brackish Water Reverse Osmosis (BWRO)

• Microfiltration, Ultrafiltration, (MF, UF)

• Cation-Anion units - CCR Packed

Bed type

• Mixed Bed Demineralisers

• Chemical Injection plant, Deaerators,

Degassers

6 Technology Partners

• SWA Water (Australia)

- DAF

- Oil Seperator

• GE (USA)

- Sea Water Reverse Osmosis

- Brackish Water Reverse Osmosis

- Surface Aerator

- DDM Mixer

- Disk Filter

- Sequencing Batch Reactor System

• Aqua Aerobic System, Inc. (USA)

• EMO (France)

- Belt Filter Press

- Gravity Belt Thickener

• Pieralisi (Italy)

- Sludge Decanter

7 Reference Installation

Reverse Osmosis ProcessBali Pecatu Graha

Pantai Mutiara

Located in the resort island of Bali, this 300

hectare luxury estate, complete with a 36-

hole Golf course, requires a freshwater supply

of 3,000 m3/day for it’s Convention Centre,

Hotels, Luxury apartments and watering of

the Golf Course.

The only reliable source of water is seawa-

ter. Using a Beach Well Intake, after passing

through a Pretreatment facility, seawater is

processed in a Reverse Osmosis Desalination

Plant (GE SWRO) with a capacity of 2 x 1,500

m3/day. The TDS (Total Dissolved Solids) of the

product water is < 200 ppm. This complex of luxury apartments in north

Jakarta utilizes water from a nearby lake

which is the collection point of a number of

small rivers. Besides having a high organic

content, the TDS (Total Dissolved Solids) in the

water is between 2,000 - 4,000 ppm.

Envitech’s Water Treatment system begins

with a physico-chemical process (coagula-

tion, flocculation, clarification) followed by

removal of organic material using Ultrafiltration

membranes. In order to bring down the TDS to

a level suitable for drinking and domestic use,

the water is then passed through a Brackish

Water Reverse Osmosis system (GE BWRO).

The final TDS of the water is < 400 ppm and is

suitable for domestic consumption.

8 Reference Installation

Municipal Water TreatmentPDAM Tenggarong

Sentul Private Water Supply

PDAM BontangCompleted in 2005, this plant supplies drinking

water to the expanding city of Tenggarong

in East Kalimantan. This city is targeted for

major development as a tourism center. The

Envitech EPC contract comprises a 100 litres/

second WTP and a 50 litres/second WTP at a

different location. Both plants treat deepwell

water which has a high iron content.

Although the treatment process is conven-

tional, a feature of the plant is that all tanks

and vessels are of stainless steel construction,

as specified by the Client.

This is a 100 litre/second conventional treatment plant to produce drinking water from a river

water supply, located near to Bogor, West Java. It is designed for expansion to 300 litres/sec-

ond. This is a high-specification project with International Consultant and was won against

international competition.

The main plant is a single concrete structure consisting of two Clarifier and three Gravity filter

basins. The Clarifiers are sludge-blanket, flat-bottom type, and can handle the variable quality

of river water supply.

At this city in East Kalimantan the only avail-

able water is from deepwells and has a very

high iron content. Envitech supplied a 150 litre/

second Water Treatment Plant plus two smaller

plants each of 20 litre/second capacity. The

plants use conical sludge-blanket Clarifiers and

conventional Sand Filters. The main plant is

built as three x 50 litre/second lines, with tank

construction specified in steel.

9 Reference Installation

HIGH PURITY WATERPertamina Balongan Styrindo Mono Indonesia

This is a single-train Demineraliser with pre-

treatment filtration, producing high quality (4

ms/cm) water for Boiler feed. Plant capacity

is 100 m3/hour. The plant is built to Oil Indus-

try standards. The CCR Packed Bed system

used by Envitech for this plant resulted in pro-

duction of treated water exceeding the Cli-

ent Specification by more than 10% both for

quality and for quantity of water. The chemi-

cal efficiency of the process also results in

lower chemical consumption and therefore

lower water production cost.

This prominent Monomer manufacturing com-

pany in Bojonegara, Banten, wanted to substi-

tute it’s high cost Desalination Plant with a Dem-

ineralization Plant, to provide high purity Boiler

Feed Water. With a Design capacity of 48 m3/

hour, the Demin plant was put into operation

mid 2004 and has consistently produced demin-

eralized water with a conductivity of <1.0 micro-

siemens/cm and a Silica level of <0.05 ppm. By

using this Packed Bed, Counter-current Cation

/ Anion Unit the company has met it’s objective

of reducing Operation Cost associated with

Boiler Feed Water production.

10 Reference Installation

RECYCLE WASTEWATER TREATMENTUnilever

This is a waste water treatment plus recycle

water treatment plant, installed at the large

Unilever production facility in Surabaya. First

stage is conventional biological treatment of

the waste water, with some tertiary treatment

to further reduce contaminants, and this is

followed by a reverse osmosis (RO) unit,

supplied as a container-mounted package

for rapid installation.

Treated water from the RO plant is of high

purity and is recycled for use as boiler feed

water. Reject water from the RO plant has

a high salt concentration and is normally

discharged to drain, but in this case Unilever

have a process use for the reject water.

As a result, the installation of this plant has

completely eliminated waste water discharge

from the factory.

There are also cost savings in reducedpur-

chase of PDAM water, and in boiler water

treatment cost - this resulting in a

“payback time” of less than 3 years.

11Reference Installation

Waste Water Treatment

Lippo Cikarang Industrial Estate

Denpasar Sewerage Development Project (DSDP)

Lippo Cikarang was one of the first Industrial

Estate in Indonesia to have a centralized

Wastewater Treatment Plant. The 5,000 m3/

day wastewater treatment plant was de-

signed to treat wastewater discharged from

various industries located in the 300 hectare

estate. More than 50% of the wastewater

consisted of high strength wastewater from

Batik Textile works. The treatment sequence

used in the plant is unique to Envitech in

that the wastewater undergoes Biologi-

cal Treatment first and then followed by a

Physico-chemical stage. The discharge from

the centralized treatment plant has been

well within the government’s standard.

This current project is of interest because

when completed, Denpasar will be the first

large city in Indonesia with a major sewer-

age system and sewage treatment. Pro-

ject finance and main contractor are from

Japan and Envitech has supplied the Aqua

Aerobics Surface Aerators which will be

installed in the large aerated lagoon.

Envitech has installed several hundred

Aqua Aerobics Aerators in Indonesia and

they have the highest reputation for

performance and reliability.

C Contact Us

Branch Office

Perumahan Delta Sari Baru

Blok Delta Puspa No. 58

Waru - Sidoarjo 61256. Jawa Timur

Tel 62(31) 8551334

Fax 62(31) 8551334

Email: envitech@indo.net.id

Head Office

Wisma Pondok Indah

1 Suite 306-307, 3rd Floor

Jl. Sultan Iskandar Muda Kav. V-TA

Jakarta Selatan 12310

Tel 62(21) 75819050 (Hunting)

Fax 62(21) 75819040

Email: envitech@envitech.co.id

Website

www.envitech.co.id