Cernol Water Solutions

On-Site Experts

AMM PRESENTATION@ Domaine Les Pailles

BERNARD COMARMONDGENERAL MANAGER

06.06.12

Cernol Water Solutions

The Cernol Water Solutions is a joint venture between Cernol Chemicals and Improchem since March 2001. Improchem is part of the AECI Group based in south Africa.

We source our technology from GE USA which is represented worldwide.

Cernol Water Solutions Objectives

Our main goal is to become the leading water treatment company in the Indian Ocean through our expertise and commitment.

CHEMICAL EVOLUTION OF WATER TREATMENT IN MAURITIUS

Potato Carbonate Lignin and tannin Phosphate EDTA Phosphonates Polymers Phosphate Polymers

Boiler System

Make-up Water

PrimaryPretreatment

SecondaryPretreatment

Condensate

Steam Header

Feedwater

Blowdown

DeaeratorDeaerator

ChemicalFeed

Systems

Boiler

DeaeratorDeaerator

EQUIPMENT EVOLUTION IN MAURITIUS

Mostly chemical treatment Filtration plus softening Demineralisation - Achieved less water usage- Less chemical consumption- Effective use of bagasse and coal- Less pollution to the environment

Reverse Osmosis - Capital Investment high but with low running cost- Less pollution to the environment

CASE STUDY

1972

Water treatment for boiler, A compound and catalysed sulphite 1984

44Bar coal bagasse boiler installed 1995

Installation of Demin plant ( saving of bagasse for 2 months after crop)

1998

Installation of second HP boiler 44bar 2011

Installation of reverse osmosis

How does RO work?

P1

WaterStrong

Solution

H2O

H2O

H2O

OSMOSIS PROCESS

WaterStrong

Solution

H2O

H2O

H2O

REVERSE OSMOSIS PROCESS

P2

Reverse Osmosis BasicsReverse Osmosis Basics

FEEDWATERFEEDWATER

100 gpm100 gpm

600 ppm TDS600 ppm TDS

PERMEATEPERMEATE

75 gpm75 gpm

30 ppm TDS30 ppm TDS5% Salt Passage5% Salt Passage

75% Recovery75% Recovery

REJECTREJECT

95% Salt Rejection95% Salt Rejection

25 gpm25 gpm

2310 ppm TDS2310 ppm TDS

25% Reject25% Reject

RO Process

High PressurePump

Permeate

ConcentrateModule =Membrane Element

+ Pressure Vessel

BOILER PRESSURE USING BAGASSE

CTBV 80 bar boiler CTSAV 80 bar boiler Medine 31 bar boiler CEL 44 bar boiler FUEL 44 bar boiler

Cernol Water Solutions

On-Site Experts

Our main objective is to be the No. 1 water treatment company in the region.