Flow Measurement & Control


Optimising wastewater plant in Mauritius

April 2001 Flow Measurement & Control

Endress+Hauser, in conjunction with its local representative Rey & Lenferna, has made significant inroads with the supply of process instrumentation to most sectors of the Mauritian industry, including brewing, chemical, dairy, textile, sugar and power generation.

One of the world's leading textile mills, Compagnie Mauricienne De Textile Lte‚ (CMT), recently installed a broad range of Endress+Hauser equipment on its wastewater treatment and services plants.

The installation of measuring instrumentation from Endress+Hauser at CMT
The installation of measuring instrumentation from Endress+Hauser at CMT

The instrumentation on the wastewater plant, comprising turbidity, Redox, pH, conductivity, temperature and flow, is required to control the neutralisation of the effluent from the textile mill and monitor the discharge, which is being supplied to an adjoining sugar plantation for irrigation purposes. This effluent posed some difficulties; due to its above normal temperature and high level of contaminants, which could cause pH and redox electrode poisoning. Endress+ Hauser recommended the Ceraliquid Electrode CPS41 to solve this particular problem for pH and the Ceraliquid Electrode CPS42 for Redox.

On the steam supply a Prowirl DN150 vortex flowmeter and Cerabar S pressure transmitter were connected to a DXF351 flow computer to provide compensated steam mass flow results. For borehole water level monitoring a Waterpilot FMX 160 and RIA250 process display were utilised. All of the above readings are fed to a 16-channel Memograph paperless recorder, which in turn is connected to a desktop PC and printer for easy analysis and clear visualisation of the data.

The company ordered the equipment so that municipal effluent discharge requirements would be met and chose Endress+Hauser because of the good after-sales service experienced with previous installations and the 'fit and forget' philosophy of the equipment.

CMT, who are already a large user of Endress+Hauser's products, are now in the process of procuring a further 44 Promag electromagnetic flowmeters for a project to increase the capacity of their existing dyeing machines.

Customer confidence in utilising Endress+Hauser's equipment throughout the sub-Saharan region has been greatly enhanced by local representation in Mozambique, Kenya, Zimbabwe and the Indian Ocean islands and the Regional Service Support Centre after-sales back-up facility offered by Endress+Hauser South Africa.



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