Lewis Environmental Service

At Lewis Environmental Services, our mission is to assist industrial concerns in eliminating the generation of hazardous waste. Our innovative and patented Enviro-Clean process enables us to recover heavy metals from industrial processing and manufacturing clients. By doing so, we help our clients reduce their total waste treatment and manufacturing costs.

Our Services

Our services are designed to provide clients with custom-built water treatment systems that improve their green profile. We offer on-site construction and fast and efficient processing standards. Our services include:

• Enviro-Clean: Our patented activated carbon technology removes heavy metals from waste water.
• Enviro-Shale: We offer waste water treatment options for fracking operations.
• Enviro-Mobile: Our Enviro-Clean and Enviro-Shale solutions are offered as mobile options, saving clients capital investments and ongoing maintenance costs.

Case Study: Leading Technologies Water Recycling Program

Leading Technologies, a computer part manufacturer in Leechburg, PA, sought to implement a plan to recycle a percentage of its process rinse water due to a 30% price increase scheduled for municipal water sewage charges. The desired recycling process needed to produce a low-level heavy metal, cyanide, and dissolved solids effluent. Our team was tasked with conducting a field demonstration test to demonstrate the viability of simultaneous destruction of cyanide and removal of silver and copper from a cyanide rinse stream generated at Leading Technologies' plant.

Pilot Study Results

The pilot study demonstrated the effectiveness of our Enviro-Clean process in removing heavy metals and cyanide from the rinse stream. The results showed averaged effluent concentrations for cyanide, silver, and copper of 0.01 mg/l, 0.009 mg/l, and 0.005 mg/l, respectively. The activated carbon system demonstrated a removal efficiency of 99.8% for cyanide, 99.1% for silver, and 98.1% for copper.

Full-Scale System Installation

Leading Technologies contracted with us to supply and install a full-scale system designed to process 80 gpm of cyanide-bearing rinse water from a high-speed electroplating operation. The system was pre-piped and skid-mounted, requiring a small footprint of approximately 8 ft. by 24 ft. floor space. The total system price was approximately $200,000.

Benefits and Savings

The comprehensive sampling program has continued for the length of operation. The average feed concentrations for cyanide, silver, and copper were 2.1 mg/l, 0.27 mg/l, and 0.55 mg/l, respectively. For the same period, the average effluent concentrations for cyanide, silver, and copper were non-detection to <0.01 mg/l. The system processed over 5,500,000 gallons of water before requiring its initial filter change-out.

As a result of the implementation of our Enviro-Clean process, Leading Technologies has realized a reduction in water usage to 41 million gallons annually, resulting in real water savings of over 31 million gallons annually. The economics of the water recycling program have also improved, as the local water authority increased sewer rates by 30% the next year.