Waste Processing Systems
Organic Blending:
SET Environmental, Inc. currently operates four (4) 4,000-gallon RCRA-permitted carbon steel tanks. Each tank has been equipped with an agitator, pressure release valve, and conservation vent.
Corrosion protection is accomplished through proper management practices, such as maintain chlorine content below five percent and pH concentrations above seven. An independent professional engineer inspects tanks every three (3) years for deterioration. All ancillary equipment for these tanks is above ground. The fuel blending tanks and ancillary equipment have a secondary containment structure that holds 7,529 gallons and is lined with a 100 mil HDPE liner. These tanks are covered to prevent the accumulation of rainwater. Each tank has been raised off the ground with the use of I beam supports to facilitate daily inspections.
The types of waste primarily handled in these tanks are organic liquids (solvents and paints).
Chemical Treatment:
There are four tanks that make up the chemical treatment system. The tanks identification numbers are PT-2, PT-5, PT-11, and WW-2; permit numbers are 8, 14, 9, and 15 and capacitates are 1,700, 7,000, 1,615, and 6,500 gallons, respectively.
All four tanks and associated ancillary equipment are:
- Above ground;
- Equipped with sealed secondary containment capable of containing the contents of the largest tank;
- Equipped with agitators;
- Inspected every three (3) years for integrity by an independent registered professional engineer, and are;
- Inspected each workday by qualified facility personnel. The purpose of this inspection is to identify any leaks, corrosion, or other system failure in the tanks, ancillary equipment, and secondary containment.
PT-2 and PT-11 tanks and ancillary equipment are:
- Equipped with corrosion protection (Kynar liners);
- Equipped with agitators, pH, temperature, and oxidation potential monitors;
- Connected to an air emissions control system that is composed of a recirculating caustic counter current packed scrubber in line with an 8000-pound activated carbon bed;
The treatment processes designed for each tank are as follows: PT-2 is used for neutralization and hydrolysis, PT-5 is used for caustic solution storage, WW-2 is treated waste water storage, and PT-11 is used primarily for hydrolysis of water reactive acids and neutralization of liquids and gases.
Gas Cylinder Processing:
SET Environmental, Inc. has a variety of scrubbing techniques used for the treatment, disposal, and recycling of compressed gases. All processing activities take place under emission-controlled atmosphere. The use of PT-11 (Chemical Treatment Unit) allows for remote handling of the gas cylinders. The flow of gases through the scrubbing systems is controlled from outside the treatment building, thereby eliminating potential exposure to the gases.
Several portable processing units are used for the treatment of compressed gases. Each primary treatment unit is equipped with a back-up unit of equal capacity. These portable processing units are connected to an air emissions control system consisting of a caustic scrubber to remove acidic fugitive emissions and a venturi scrubber to remove particulates.
Two large enclosures, maintained under negative pressure are utilized while connecting compressed gas cylinders to manifold systems. One enclosure is connected to a caustic scrubber and the other is connected to 2-6000 pound activated carbon beds. Each system is designed to prevent employee exposure and capture any potential fugitive emissions.
In addition to processing compressed gases, SET Environmental, Inc. has the capability to overpack or repack cylinders in poor condition and to process cylinders with inoperable valves.