We are a full service company providing process handling to the oil, industrial, agricultural and municipal sectors. In the process, we dramatically reduce waste handling cost and produce a cleaner, greener environment.
The DryVac technology provides a cost effective, integrated process for dewatering and drying, handling organic and inorganic waste streams, which may be laden with hydrocarbons or other hard to filter media. Solids are dried completely, up to 99% if desired!
The DryVac process involves dewatering sludge, then drying the remaining solids in a single operation. The solids are dried up to 99% and all pathogens are killed in the process, resulting in Class A 'eq' biosolids. The discharge water is high quality, a combination of filtration and distillation.
The application of low pressure steam and vacuum to our patented plates makes this possible. While the DryVac unit appears physically similar to standard filter plate presses, the plates are actually DryVac Elastic Envelope Modules (DEEMs). These modules expand and contract according to pressure being applied either externally or internally. The filter cake is squeezed as the DEEMs inflate. Heat is applied with low pressure steam and vacuum on the filter chamber causing the moisture from the solids to be vaporized at low temperature.
DryVac Technology was originally founded in the 1980's as Simpson Filtration of Richmond, California. Mr. Simpson began manufacturing standard filter presses for use in plating shops, pigment production and oil tank cleaning.
In 1995 Mr. Simpson invented a specialized plate, which could dewater and dry slurries in a single unit, DryVac Environmental Services was born.
Using previous experience, the original DryVac units consisted of small systems for dewatering and drying of metal hydroxides, paint pigments, wastes and slurries in oil tank bottoms.
As the years progressed, significant research and development concentrated in creating plates with a more robust plastic. This resulted in the production of bigger plates and, hence, larger units.
In 2000, DryVac Environmental Services investigated worldwide to locate the best advances in technology and, perhaps more importantly, the engineering capability to properly use these technologies. At that time DryVac Environmental Services transitioned into a full service company providing process handling the oil, industrial, agricultural and municipal sectors.
Simpson filterpress late 1980's
Wastewater sludge treated with the DryVac system qualifies as Class A eq. The DryVac system works for all wastewater sludge including RO rejection, anaerobic, aerobic and activated sludge and allows the recycling of water.
All agricultural wastes can be dried to secondary feed products or fuel. This includes aquaponics, fisheries, cattle, poultry etc. and allows the recycling of water.
The DryVac system can dry chemicals up to 99.9% in a closed environment. Safer and cost efficient compared to the thermal dryers and allows the recycling of water.
Food waste processed with DryVac becomes a resource and no longer contributes to the methane produced by landfills, even if it is disposed of. In addition valuable water is recovered.
DryVac can be used as part of the mining process to achieve higher efficiency for capturing minerals. DryVac can also used to clean mine tailings and drying out tailing ponds. DryVac is also used in brine water management especially in shaft mine applications.
The DryVac system can dry paint pigments and dyes up to 99.9% in a closed environment. Safer and cost efficient compared to the thermal dryers and allows the recycling of water.
The DryVac technology is used to treat any kind of sludge that needs to be dewatered and dried. Click the button below to see some of the other applications where DryVac is beneficial.
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