Grease interception devices are mandatory in all commercial, industrial and institutional facilities wherever fats, oils and grease (FOG) could be discharged into the sewer system. These facilities include restaurants, cafeterias, grocery stores, institutional kitchens, food processors, etc.
The grease interceptor captures and retains excess FOG and solids allowing only the cleaner wastewater to pass through to the sewer. As grease interceptors fill with captured FOG and solids, they progressively become less effective.
Grease interceptors must be periodically emptied in order to meet sewer discharge bylaws, prevent serious drain problems and protect the sewer and wastewater treatment systems.
The Companys trained service crews use vacuum trucks to pump out grease interceptors and transport the liquid organics for processing and final recycling.
Industrial Food Processing Wastewater Residuals
Industrial food and beverage processors typically generate large quantities of residuals that must be removed from their wastewater prior to discharge to the municipal sewer system. This process is referred to as pre-treatment. In most cases, grease interceptors are not efficient enough and other pre-treatment technologies are required.
The most common technology deployed is dissolved air flotation (DAF). DAF is a clarification process for the separation of residuals from wastewater. It works by producing a stream of micro-fine air bubbles that attach to solids and float them to the surface, where they can be removed and stored in a holding tank for periodic collection. Industrial processors also have organic residual streams that are not wastewater related such as excess and off-spec product.
The Companys trained service crews use vacuum trucks to collect and transport these residuals for processing and final recycling or disposal.
Liquification and Diversion of Food Residuals
The Company provides organics diversion services to the Industrial, Commercial and Institutional food industries sectors where the materials to be collected are liquid or semi-liquid and can therefore be collected using the Companys vacuum truck fleet and can be managed through the Companys organics recycling programs.
The Organic Resource Recovery System (ORRS) is a patent protected process for on-site collection of organic waste. Produce and other food related wastes are ground into slurry by a mill and discharged into a holding tank where it is stored until collected by a vacuum truck. Liquification of food organics provides an approximate five-fold volume reduction and makes these residuals ideally suited for use as a feedstock and for renewable energy production.
Other Related Vacuum Truck Offerings
The Company provides related vacuum truck services such as: grease interceptor repairs and replacement, drain and sewer cleaning, off-spec product removal, septic and holding tank pumping; catch basin cleaning and sump and lift-station cleaning.
Walker Environmental Group Inc. Company Business Activity