"Municipal and Industrial wastewater mostly comes within high concentration of
Phosporous containing compounds. Phosporous comes mainly from human
excreta and from synthetic detergents and it is also the primary nutrient
responsible of algal bloom. If these wastewater are not treated to removes
phosphorous and/or nutrient enrichment in both groundwater and surface waters
then it may leading to detrimental effects on water quality and eutrophication of
surface water.
Even though some methods such as reverse osmosis and electrodialysis have been
suggested to remove phosphorous compounds, such methods are proven to be
very costly. Therefore some countries are still looking for various methods which
will be more effective as well as inexpensive. One of the method which in recent
times is the use of coagulants such as calcium, aluminum, or iron salts into the
Wastewater Treatment Plant. The use of Ferric Chloride is an example of widely
used coagulant; however it creates systematic side effects to the treatment plant.
Nevertheless, it is believed that this method is more effective removing
Phosphorous in wastewater.
Loganholme Wastewater Treatment Plant is the biggest wastewater treatment
plant in Queensland regions which start using this method in order to removes
Phosphorous as well as aligning their system with the new statement from
Environmental Protection Agency (EPA) in terms of their discharge effluent into
The Logan river. An approval from Queensland Government is needed to run the
new system, therefore some laboratory test has to be conduct in order to make
sure that this new system is safe to run without too much disturbing the Logan
river ecosystem.
Based on the laboratory results, it can be seen that this method are effective in
removing Phosphorous and also meets with the new regulation from EPA.
However, one thing that should be pointing out is the dose of this coagulant should be used in appropriate way in order to prevent another effects that might
me occur in the appearance of this new method.;"
