CT Series Closed Loop & Hybrid Wash Water Treatment Systems

We provide heavy-duty, multi-stage, closed loop and hybrid wash water treatment systems to clean
the wash water so it can be used over and over, saving thousands of gallons of water per year and
associated discharge costs.
The system can be designed in two ways. The first option is a complete closed-loop system with no
sewer discharge. With these systems, 100% of the water used by the pressure washers,
demuckers, and water cannons is recycled. As water is carried off with equipment, evaporated into
the air, or blown off the wash bay due to wind, make up water is added to the system to offset these
losses.
The second option is a hybrid closed-loop system. In our hybrid systems, water is recycled for the
de-mucking and/or water cannons, but fresh water is fed to the pressure washers. If the pressure
washer adds so much water to the system that all water storage tanks are filled to the maximum
level, any additional excess water is treated with carbon and sent to the sewer system.
Both systems are part of our comprehensive approach to water treatment that includes solids
settling, oil and grease removal, water filtration, odor control, and final polishing.

Stage 1 – Solids Settling

We help you develop site-specific solutions to eliminate as many solids as possible before the water
goes to the next stage of filtration. Solutions include sumps, basins, trenches or screening systems
that are custom-designed for your facility, washing processes and maintenance procedures.


Solids Handling Trench System		Solids Handling Basin System

Stage 2 – Oils, Grease & Solids Removal

After the coarse solids settling, the water is processed through a multi-compartment stainless steel clarifier oil-water separator, which separates out smaller suspended solids, oil and water. In the first compartment, free oils float to the surface. In the second section, the stainless steel clarifying plates remove coarse amounts of oil and as much Total Suspended Solids (TSS) as possible. The angles of the non-clogging plates are 55° which allows solids to slide down the plates into the solids hopper, where they can easily be pumped out. Next, the water goes through our coalescing media which removes essentially 100% of all free and dispersed non-emulsified oils so the FOG effluent concentration can be as low as 5 ppm.


SPT-10 Clarifier Oil Water Separator		SPT-30 Clarifier Separator with Pump & Control

Stage 3 – Water Filtration & Odor Control

After the clarifier oil-water separator, the water is pumped though several filtration steps including multi-media (sand, gravel, anthracite), blended activated carbon, polishing filter, and corona discharge ozone. These filters reduce odors and any contaminants to fewer than 10 microns in size, including emulsified oils, waxes, and other volatile organic compounds. Media, carbon, ozone and water storage volumes are typically customized to meet your particular application.

Stage 4 – Final Polishing Filtration

In the final polishing filtration section of the CT system, water is pumped from the storage tank
through a blended activated carbon bed (customized for your application) and then through a final
cartridge filter. When the pressure washers require water, the pump will provide clean, treated
water, free of particles, substantially all emulsified oils, waxes and other volatile organic compounds.

Closed Loop System Features

10-100 GPM Design Flow (Larger systems are available)
Non-Ferrous Construction – Stainless Steel, PVC, Fiberglass
Fully-Automatic, pre-wired
Multi-Stage / Multi-Pass Filtration

Clarifier Separator System

Stainless Steel Clarifier Oil/Water Separator with 55° Hopper
Advanced coalescing media designed to remove oil droplets greater than 20 microns
Electric or Air Diaphragm pump with controller

Closed Loop Filtration System

Automated Self-Cleaning Multi-Media and Carbon Fiberglass Filter Tanks
Heavy-duty, high efficiency Re-Circulation Pumps
Heavy-duty high efficiency Re-Pressurization Pumps
Transfer pump to pump water from clarifier separator to system
Heavy-duty Ozone System to control odors (up to 32 gms per hour)
(2-3) Poly water storage tanks – UV Protected
Sensors and interconnecting Schedule 80 plumbing
UL-Listed NEMA-4X control panel
PLC controller for automatic back wash operations
All components mounted on heavy-duty stainless steel skid

Optional Features

Additional water storage tanks
Bag filters
Transportable equipment rooms
Rain Diverter Systems
pH control system
TDS monitoring system
Electric disk skimmers
Automatic sludge dump systems
Corrosion protection packages for high salt or corrosive applications


CT-65 – 65 GPM Closed Loop Treatment System		CT-10 – 10 GPM Closed Loop Treatment System with Tanks & Separator

Typical Closed Loop System Flow Process

Closed Loop System Flow

TYPICAL CLOSED LOOP SYSTEM SPECIFICATIONS

MODEL	CT-10/10	CT-35/20	CT-65/50	CT-100*
DESIGN FLOW RATE, GPM	1-10	1-25	10-55	30-100
COALESCING PLATE AREA, SF	41	124	211	400
COALESCING MEDIA, CF	4	8	24	48
CLARIFIER SEPARATOR SIZE, FT (WxLxH)	3 x 7 x 5	3.5 x 8 x 6	4 x 10 x 6	5 x 11 x 7
NON-EMUSIFYING INFLUENT PUMP, GPM MAX	20	50	75	125
MULTI-MEDIA, LBS	300-500	500-1000	2500-2600	3700-4200
ACTIVATED CARBON, CF	4-15	10-40	20-40	40
POLISHING FILTER, SET	1	1	1	1
RECLAIM RE-CIRCULATION PUMP, HP	1.5	1.5	3	5
RECLAIM RE-PRESSURIZATION PUMP, HP	1	3	5	7.5
DIRTY WATER STORAGE VOLUME, GAL	500-750	500-1000	750-1500	1000-2500
CLEAN WATER STORAGE VOLUME, GAL	500-750	500-1000	750-1500	1000-2500
OZONE SYSTEM, GRAMS/HR	8-16	8-32	16-32	32
RECLAIM CONTROL SYSTEM	PLC, Automatic, Manual or Off
RECLAIM PUMP FRAME SIZE, FT (WxLxH) (TANKS ADDITIONAL)	4 x 6 x 6.5	4 x 8 x 8
POWER REQUIREMENTS	208 / 240 V 1 ph or 208 / 240 / 480 V 3 ph

* LARGER CAPACITY SYSTEMS (200-1500 GPM) ARE AVAILABLE

APPLICATIONS: