Biological Wastewater Treatment    Domestic, Commercial & Industrial The Environmental Warehouse home page
	Product Range
	Air blowers - Aerators AIR+air diffusers Odour Control Chemicals Dissolved oxygen test kits pH meters & controllers Process design Sludge dewatering Flocculants for sludge bulking control Simple to operate, small area required.  Suitable for low & high strength wastewater purification.  Absorbs organic chemicals which are not removed by biological treatment.  Available as either fixed filters or disposable canisters.
	Air Blowers
	Yasunaga air blowers are specifically designed for aeration of small to medium biological treatment tanks. All blowers in the range feature compact design, high efficiency, quiet low vibration operation, dust filters on air intake and replaceable diaphragms.
	Product Range
	Model Air Flow Pressure Range LP-40A 43 L/min 5-20 kPa LP-80A 80 L/min 5-20 kPa LP-120A 120 L/min 5-20 kPa LP-150A 150 L/min 5-23 kPa LP-200A 200 L/min 5-20 kPa
	Typical dimensions are 210 x 180 x 210mm high. Mechanical agitator type aerators are also available for larger applications and for dam aeration.
	AIR+ Range of Air Diffusers Download our AIR+ Air Diffuser Brochure
	Membrane air diffusers offer maximum transfer of oxygen to wastewater to enable a high rate of biological respiration. The flat, large diameter design offers the following benefits ...
	High oxygen transfer efficiencies Low cost and easy to install (glue to PVC pressure pipe) Rubber membrane ensures long service life Effective over a wide range of air flows Pores seal when air supply is removed Thousands of pores emit streams of fine bubbles 2-3 mm diameter Low pressure drop of 4 kPa.
	Odour Control Chemicals
	Odour Kill is a naturally activated Zeolite which is very effective for control of odours that may arise from wastewater treatment. The products are used by many municipal sewage treatment plants for temporary and long term odour control problems. Zeolite has a three dimensional lattice structure which irreversibly absorbs a large range of soluble metals and other chemicals including ammonia and sulphur compounds. These are the most common source of odours in wastewater treatment. Odour Kill is supplied as a free flowing powder which may be applied by prior slurrying or dosed dry to a point of turbulence. Pack sizes 40 kg or one tonne bulk bags.
	Dissolve Oxygen Test Kits
	Adequate oxygen levels must be maintained in sewage treatment systems to sustain biological activity and to minimize odour. These easy-to-use field test kits allow rapid determination of dissolved oxygen levels. Monitoring and controlling oxygen levels will improve plant operation and eliminate offensive odours. Measurement range 0-10 mg/L. All chemicals are supplied in plastic dropper bottles for safe and easy dispensing. Part no. HI4810
	The Environmental Warehouse home page