Coca Cola Research Conventional paper

NO2

APRIL 1988

Web page Performance evaluation of an stimulated sludge process using a laptop or computer spread sheet HA Nicholls................................................................ 65 Enhanced polyphosphate organism cultures in activated sludge systems Component 1: Improved culture expansion MC Wenttel, RE Lxwenthal, GA Ekama and GvR Marais........................... A simplistic mass balance of storm-water toxins for two urban catchments M Stephenson and IRA Green................................................. Caustic restoration from bottling plant liquid AE Simpson, FG Neytzell-de Wilde and CA Buckley............................... A review of the role of Nocurdia-like filaments in turned on sludge foaming OJ Hao, PF Strom and YC Wu................................................. Short Communication

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Speedy removal of the pituitary gIand of the sharptooth catfish Clarias gariepinus (Burchell) HJ Schoonbee and Swanepoel........................................................................................................ 111 Brief Communication

Faecal clostridia and indicator bacterias levels in an eutrophic impoundment DP Sartory............................................ 115 Guide to Authors....................................................... Again cover ISSN 0378-4738

Caustic recovery coming from bottling flower effluent

STRYGE Simpson*, FG Neyttell-de Wilde and CALIFORNIA Buckley Polluting of the environment Research Group, Department of Chemical Executive, University of Natal, King George V Avenue, Durban 4001, S. africa. Abstract The procedure process employed by most bottle washing plants for the recovery and recycle of water via sodium hydroxide bottle washer effluent requires filtration. turned on carbon sponging and ion exchange. The main disadvantage of the ion-exchange system is that the total dissolved solids load in the final release is actually elevated above that from the effluent as a result of regeneration chemicals. An alternative alternate process for the restoration and reuse of water from bottle of wine washer effluent has been suggested and involves filtration, carbonation and invert osmosis. In addition a final level involving the electrolysis of the reverse osmosis section concentrate in an electrochemica! membrane cell have been proposed. This will allow for the recovery and reuse of the sodium hydroxide and will lower the total mixed solids which are discharged towards the wash drain. Investigations reported elsewhere, for the use of electrochemical techniques for caustic recovery by textile effluents have been effective. It is suggested that similar approaches used for the treating bottle cleaner effluent will be successful. The technical functioning parameters as well as the economics with the process happen to be therefore certainly not discussed with this paper.

Introduction

South Africa is actually a water-scarce region that faces two key waterrelated concerns, viz. a major water lack by the yr 2020 ADVERTISING; and the salination of existing water products due to the launch of industrial contaminants into the waterways (Kricl, 1975). The Water Research Commission rate has as 1971 paid research in connection with water management and liquid treatment, in order co help industry and protect the standard of our normal water resources. It has led likewise to the development of groups/research organisations with experience in the take care of industrial effluents, such as the Polluting of the environment Research Group at the University of Oriundo. Emphasis has been placed on the total recycle of effluents, in which water can be recovered and purified for reuse; and processing chemicals are segregated from effluents for reuse, thus reducing or substantially reducing the...

References: BUCKLEY, C. A. and SIMPSON. A. E. (1987) Liquid treatment. Southern African Patent. 87/4406. LINES G. 3rd there’s r., BUCKLEY, FLORIDA.. SIMPSON, Meters. P. L., BINDOFF, A. L.. TREFFRY-GOATLEY. K.. ORBIN. A.. NEYTZELL-DE WILDE. N. G. and DAVIES C. J. (1985) Microfiltration applications in the remedying of industrial effluents. Proceedings with the Symposium about Forest Goods Research International - Achievements and the Long term. CSIR, Pretoria. South Africa. HARNED, H. T. and DAVIES. R. (1943) The ionisation constant of carbonic chemical p in drinking water and the solubility of carbon in water and

aqueous salt solutions from 0. 5OC. JACS 65 2030. HARNED L. S. and SCHOLES S i9000. R. (194 1) The ionisation frequent of HCO from 0-5O0C. JACS 63 1706. KRIEL, J. G. (1975) Organizing and progress in the development of the water solutions of S. africa with special reference to Southern region Western Gabardine. Congress in the South Africa Association to get the Progression of Scientific research, Stellenbosch. PRESTON-WHYTE, M. L. (1986) C0 2 's role in water reclamation. South Africa Wine beverage and Refreshment 19-22. WISSBRUN, K. N., FRENCH. G. M. and PATTERSON, A. (1954) The actual ionisation continuous of carbonic acid in carbonic chemical p in aqueous solution via 0-450C. Diary of Physical Chem 58 633.

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ISSN 0378-4738 = Normal water SA Vol. 14. Number 2 . April 1988



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