Overview

Wastewater includes all sources of household discharges into sewers, industrial effluent discharge and stormwater inflows. A typical wastewater treatment plant is therefore required to treat a variety of constituents including pathogenic microorganisms, suspended matter, dissolved metals, fats and oils, organic compounds that may be volatile, hazardous or carcinogenic and nutrients that may stimulate the growth of a variety of nuisance algae and plants. In addition the odour and colour of wastewater may require a treatment regime.

Modern treatment plants deliver performance to the tertiary level of treatment standards. This standard indicates compliance in the removal of both nutrients and suspended solids to a low level and the removal of biodegradable organics. Odorous constituents such as Ammonia compounds are also converted in the process.

Through disinfection of the treated wastewater, re-use strategies have been adopted for water to be distributed to downstream users including irrigation, farming, energy and industrial applications.

The re-cycling of treated and disinfected wastewater back into the potable water distribution system is being adopted in many cities. The combination of advanced biological treatment of wastewater coupled with Reverse Osmosis membrane treatments and disinfection provides a multiple barrier approach in the risk management strategies for the delivery of safe re-useable water.

The expertise of Septech in Moving Bed Bioreactor (MBBR) technologies is at the forefront of advances in Biofilm technologies. Using an immersed inert media in the treatment tank for the growth of biofilms, MBBR biofilms grow rapidly as they degrade the contaminants. The continuously moving bed process ensures the inert carriers are polished, thereby providing re-generated sites for the further growth of biofilm. The higher biomass growth allows for the treatment of very high contaminant loadings and also results in a compact plant size. MBBR systems can also cope with wide variations of water quality and flow rates.

Underground Trickling Biolfilters offer an easily installed solution for lower throughout requirements and where reduced sludge volumes are required. UTB plants are both noiseless, odourless and consumes minimal power. UTB plants are essentially unsighted technologies making them ideal where aesthetics are a premium.

Extended aeration packaged STP is a proven solution for treatment of domestic sewage where an easy-to-operate and conventional system is preferred. Fabricated in epoxy-coated steel tanks, Septech’s ENVIROPACK units can easily be transported and relocated from one site to another.

Tertiary treatment using multimedia filtration can be incorporated to improve effluent quality.

Advanced wastewater treatment plants offer higher performance and operational efficiencies with reliabilities that have set new standards in wastewater treatment. The expertise and experience of Septech is targeted to the delivery of the highest quality water outcomes whilst maintaining optimum plant reliabilities.

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Septech Underground Trickling Biofilter (UTB)

Septech MBBR

Septech Domestic Enviropack

Septech Capitox