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THE BIG CHALLENGE for South Africa and Africa<br />

WATER CONSERVATION AND SEWAGE DISPOSAL<br />

-A NEW APPROACH<br />

Introduction: With the ever increasing population settlement in and around big<br />

cities and semi- and rural towns the demand for potable water and sewage<br />

disposal is pushing the existing resources to its limits. In some instances the<br />

demand is already exceeding the supply of services<br />

South Africa, which is better known for its yearly droughts than its seasonal<br />

floods, is already facing a major crisis. We can really do nothing about our<br />

rainfall and because no new dams are being built and quite a few are silting up<br />

we must utilize our existing reserves to maximum effect. Much can be said for<br />

the use of rainwater tanks in millions of city dwellings to conserve water.<br />

But our biggest concern is a cost effective way of sewerage disposal without<br />

contaminating the surface drainage and the underground water reserves.<br />

Existing scenario : The big coastal cities and towns have one big ocean to<br />

aid them in sewage disposal. The high content of mercury pollution of some<br />

fish in our oceans and therefore polluted food on our tables is a cause for great<br />

concern with the sector watching health and food standards. Inland towns,<br />

however, without purification works, have limited sewage disposal systems. In<br />

some places a bucket system is still in operation. One step higher is a flush<br />

toilet draining into a septic tank. In both cases the sewage is collected and<br />

disposed of in pits or a series of open septic/evaporating dams. The raw<br />

sewage is broken down to sludge, then to water which is a far cry from being<br />

re-used. In some instances these dams are over utilized due to population<br />

explosion and housing schemes being built without proper planning for<br />

wastage disposal.<br />

This is serious. The overflowing dams and/or excess sewage being dumped in<br />

open streams are a catastrophic dilemma. Not to mention the seepage through<br />

permeable soils into the underground waters and the contamination thereof.<br />

After heavy seasonal rains the surface contamination is usually taken care of<br />

but in the case of the groundwater reserves the damage is irreversible.<br />

Experts calculate this reversal, if possible, to be at least a century in the<br />

making.<br />

Solution: For decades the Oriental countries with their billions of people have<br />

taken the organic route to not only dispose of unwanted waste but also to reuse<br />

the water as end product. Not only the Orient but countries like Egypt and<br />

Kenia have taken drastic steps to combat their sewage problems and convert a<br />

problem into an asset. On the market today, available in RSA, being developed<br />

in and imported from Japan is a product called E M (Effective Microorganisms).This<br />

is our answer. Simple. Cheap. Effective. Available.<br />

Environmentally friendly. There are two ways of going about it. Firstly the<br />

―black‖ and ―grey‖ water from each household are treated with EM. The full<br />

system cannot be installed at existing houses for a number of obvious reasons.<br />

But for future housing schemes it could be planned for.Secondly and/or<br />

together with the first instance EM treatment is applied at the sewage<br />

plant/septic dam/pit.The water as end- product is not readily drinkable but<br />

extremely suitable for irrigation. Due to its high nutrient concentration it is not<br />

recommended for overhead- but flood irrigation only. Here we can think about<br />

the potential for small farming with ―free‖ water otherwise gone to waste<br />

through evaporation.And then there is the serious matter about the forthcoming<br />

2010 Soccer Games. Much has been said and written and amazingly even<br />

been done about stadiums, roads, railways, public tansport, accomadation etc.<br />

etc. but one thing remains unsaid. The matter of extra sewage into our already<br />

overcapacity systems has been totally ignored or otherwise rejected as being<br />

unimportant. This is a big mistake.How can the authorities be so shortsighted?<br />

It is estimated that every 1 million visitors will generate 100 million litres of<br />

sewage PER DAY EXTRA into our systems.And that is concentrated only to<br />

the works of the major event holders. Can we cope with this? Sure. If we start<br />

now to fully integrate EM into our systems without necessarily immediate<br />

enlargement of the present storing capacities. Because EM accelerates the<br />

breakdown of sewage and renders the effluent harmless to the<br />

environment.<br />

Japan has restored the whole of the SETO inland sea which for decades have<br />

been polluted by several cities to the point of nearly total extinction of its<br />

marine life, to a better state than the original. Surely we in South Africa can do<br />

the same with our Municipal sewerage. And like Egypt be able to cultivate fish<br />

in the purified waste water. Just for one minute think about the consequences<br />

for future protein and vegetable production.<br />

When I say Effective Micro-organisms are the ultimate answer I don‘t<br />

necessarily mean the trade name EM but anything similar organic/biological by<br />

origin with the same properties and effectiveness. Let‘s get our acts together.<br />

(Short original report written by Christoffel L. Laubscher )<br />

10<br />

Moenie vergeet om aan die blomme te ruik nie!<br />

"Om te laat gaan"<br />

"Om te laat gaan" is nie om te vergeet, om nie te dink oor iets,<br />

of iemand te ignoreer nie.<br />

Dit laat nie gevoelens van woede, jaloesie, of spyt agter nie.<br />

Om te laat gaan is nie om op te gee, of in te gee nie.<br />

Om te laat gaan wys iemand het die moed om verandering te<br />

aanvaar,<br />

en die innerlike krag om aan te gaan.<br />

Om te laat gaan is soos maak 'n nuwe deur oop.<br />

Vee die pad voor jou skoon. Maak 'n nuwe begin.<br />

Om TE LAAT GAAN maak jou vry!<br />

SPROEIREëN<br />

-- D.J. OPPERMAN<br />

My nooi is in 'n nartjie,<br />

my ouma in kaneel,<br />

daar's iemand . . . iemand in anys,<br />

daar's 'n vrou in elke geur!<br />

As ek 'n stukkie nartjieskil<br />

tussen my vingers buig of knak,<br />

breek uit die klein sproeireën<br />

wat geurend om my hand uitsak,<br />

die boorde weer van Swartfoloos<br />

en met die nartjies om my heen<br />

weet ek hoe 'n vrou kan troos.<br />

O my nooi is in 'n nartjie,<br />

my ouma in kaneel<br />

daars iemand . . iemand in anys,<br />

daar's 'n vrou in elke geur!<br />

`n Man sal enige<br />

iets doen vir `n<br />

mooi vrou…<br />

Alle mense<br />

glimlag in<br />

dieselfde<br />

taal.<br />

10<br />

GROOTMIST BASAAR<br />

12 Nov. 2011; 10vm<br />

10<br />

10

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