Fabrication & Maintenance


Oil &Fuel Spills

Watheroo Bentonite has excellent properties for absorbing oil and fuel spills and thereby being an effective material for environmental and worksite clean-ups.

Treatment of waste waters

Treatment of waste waters from mechanical maintenance activities

Removal of suspended and emulsified oils and fats from wastewaters.

Waste water from many industries and can contain emulsified or dispersed fats, oils, grease, fuels or other hydrocarbons. These oils and fats need to be removed prior to discharge or reuse of wastewaters. The high-grade calcium bentonite clays have an affinity for fats and hydrocarbons, when fats and oils are bound to the clay they can be rapidly separated from water.

Bentonite Clay treatment processes for dispersed or emulsified fats, oils and hydrocarbons utilise the affinity of clays for these oils and fats and modern chemistry and engineering to separate the clay/oil complex from water.

Treatment of waste waters containing heavy metals, contaminants or excess turbidity.

Removal of metal ions and organic compounds dissolved or suspended in water.

Clay has been used as a low cost adsorbent to assist with cost effective removal of metals and organic compounds from wastewaters.

The calcium bentonite clays have a high capacity to bind metal ions dissolved in solution. This adsorption, the binding of chemicals to bentonite clay surfaces, is a rapid process and the binding is strong.

Once these metals are bound to the bentonite clay they can be rapidly separated from water by removing the bentonite clay.

Bentonite clay can then be flocculated by adding special flocculating chemicals; these cause the benonite to form large aggregates that can be easily removed from water.

Metal ions including copper, zinc, lead, mercury and cadmium bind strongly to the charged surfaces of the ebonite clay and can be removed from the water as metal/clay complex.

Similar process occurs with a range of organic chemicals, which also bind strongly onto the clay surface. These include industrial dyes, solvents, herbicides, pesticides and other toxins.