Comprising blend of bentonite clay, pH adjusting items, and polymers, CLEARTREATÂ® Powders can be custom formulated to address specific requirements.
Online PR News – 09-July-2012 – Newburgh/NY – March 16, 2011 - Comprising blend of bentonite clay, pH adjusting items, and polymers, CLEARTREATÂ® Powders can be custom formulated to address specific requirements. Various ingredients act in sequential fashion to break oil and water emulsions, precipitate heavy metals as hydroxides, and promote flocculation and suspended solids removal. Requiring only one chemical addition to one treatment tank, CLEARTREAT produces dewatered sludge that generally passes TCLP leach test to enable disposal as non-hazardous waste.
Industrial waste water may be contaminated with suspended solids, heavy metals, organic compounds, and other potential pollutants. Various methods exist for removal of these contaminants, to include acidifying (to break oil emulsions), precipitating heavy metals, adding primary coagulants, coagulant aids, settling, filtration, etc. In general, a series of steps is necessary, requiring the addition of various chemicals, to several mixing/reaction tanks and associated equipment. The resulting sludge produced, depending upon the initial contaminants, may be classified as hazardous, entailing high disposal costs.
An alternative is available, requiring one chemical addition to one treatment tank only. The process is simple, time duration being of several minutes, and produces an easily dewatered sludge that generally passes the TCLP (Toxicity Characteristic Leaching Procedure) leach test to enable disposal as non-hazardous waste. The CLEARTREATÂ® products are dry powders, comprising a blend of clay, pH adjusting items and polymers (polyelectrolytes). These blends can be custom formulated to address specific requirements. The various ingredients act in a sequential fashion to break oil and water emulsions, precipitate heavy metals as hydroxides, promote flocculation and suspended solids removal. The specific type of bentonite clay also has the ability to ionically react with certain cationic metal contaminants to remove these species from solution.
The clay particles are agglomerated, encapsulating any suspended hydrocarbons and the resultant sludge acts in a concrete like fashion which becomes resistant to leaching under TCLP criteria.
In summary, the bentonite clay based formulations have the ability to separate oil contaminants from the water, precipitate metallic hydroxides, ionically react with non-precipitated heavy metal cations and encapsulate the material forming a non-hazardous waste, as can be verified by independent laboratory testing. The procedure is quite simple, one step and can be accomplished by either manual or completely automatic mechanisms.