wet products · a screw conveyor fed by rotating paddles that skim the surface into linear troughs...
TRANSCRIPT
Our patent-pending multi-stage Circular Zoned Dissolved Air Flotation unit is the core of our modular wastewater treatment technology. WET’s CZDAF design incorporates economic manufacturability, ship ability, and precision process control that provides the ultimate water treatment solution with the lowest chemical use.
Segmented construction for convenient container transport, WET CZDAFs are quickly erected on-site, and can be easily re-deployed.
WET Products
Multi-stage Circular Zoned DAF Unit (CZDAF)
Three Zone CZDAF
Structural integrity and mechanical stability are assured using state-of-the-art finite element analysis. This essential engineering step provides for optimum materials usage and reduced waste.
WET CZDAF Engineered for Integrity
WET CZDAF Three Zone Process Flow
Wastewater enters Zone 1, the central core of the WET CZDAF allowing up to 99% of oil to be recovered using an adjustable decanter.
Remaining effluent enters concentric Zone 2 for chemical precipitation to remove metals and other chemical contaminants.
Flow proceeds to Zone 3 where coagulants for flocculation, pH adjustment, and disinfection can be added as needed.
Throughout the flow, material floated to the surface due to dissolved air flotation is removed by a screw conveyor fed by rotating paddles that skim the surface into linear troughs in each zone.
Heavies that do not float are collected in each zone due to the conical bottom design and discharged though ports to sludge processing storage tanks.
Two Stage CZDAF
Bio-DAF Unit
Our patent-pending Bio-DAF system can effectively remove Biological Oxygen Demand (BOD), Total Suspended Solids (TSS), ammonia, Total Nitrogen (TN), and Total Phosphate (TP) from wastewater. It provides integrated physiochemical and biological treatment processes in one unit. This system includes a primary DAF unit, anoxic bio-media reactor, multi-stage aerobic bio-media reactors, a secondary DAF unit, and aerobic sludge digester. Adding ozone in the primary DAF unit partially oxidizes organic matter and improves the raw wastewater biodegradability. Ozone injection in the secondary DAF unit helps disinfect bacteria in the treated effluent and control odors. The bio-media reactors are used to remove BOD and TN and are divided into a number of functional zones. Each functional zone can develop and accumulate optimized bacteria species and microorganisms based on incoming wastewater BOD and nutrient levels, maximizing BOD and TN removal efficiency to produce high-quality effluent with reduced operating costs. The secondary DAF section intercepts and removes excess biomass and TSS, and also effectively removes total phosphorus through chemical precipitation.
Bio-DAF Applications:
• Municipal and domestic wastewater treatment and reuse• Industrial wastewater treatment and reuse• Poultry and meat processing wastewater pretreatment• Brown grease disposal station wastewater treatment
Our patent pending continuous cleaning grease trap (CCGT) is a compact, and state-of-art system to effectively intercept, remove, and recover fat, oil, and grease (FOG) from restaurant and food service establishments wastewater. Coagulant and flocculant are added to maximize removals of FOG, BOD, TSS, and colloidal particulates at the point of source. Small amount of ozone is introduced to improve FOG removal and recovery efficiency as well as for odor control during FOG recovery process. CCGT can be operated continuously. Since the removed FOG can be concentrated up to 12-15% consistency, the FOG trucking costs and disposal costs will be significantly reduced to contribute great savings for restaurants and food service establishment daily operations.
Continuous Cleaning Grease Trap (CCGT)
• Flowback & Produced Water Treatment & Reuse
• Tank Bottom & Oily Sludge Dewatering andManagement
• Drilling Mud Recovery & Closed Loop DrillingProcess
Oil & Gas Industries
WET Services
Ideal for smaller operations, The WET three-stage CZDAF system features complete management of liquids and solids. Chemical treatments are tailored to the characteristics of produced water and flowback streams. This design features a twin wire press which allows continuous sludge dewatering. The treated water can be reused for drilling operations as well as making clear heavy brine water.
Oil & Gas Industry Applications
Flowback and Produced Water Treatment & Reuse
Transportable, Modular Design for Water Reuse: 20,000 bbl/day
WET systems are engineered with a modular design for rapid deployment to provide solutions for any operation. Four-unit CZDAF design is ideal for terminal ends of water collection/distribution networks in dense oilfield applications. Solids management is achieved using two meter twin-wire belt press.
Transportable, Modular Design for Water Reuse: 20,000 bbl/day
Transportable design, 10,000 bbl/day for water reuse.
Ideal for smaller operations, our three-stage skid-mounted mini DAF system features complete management of liquids and solids. Chemical treatments are tailored to the source of produced water and flowback streams. This design features a twin wire belt press which allows continuous sludge dewatering.
Mobile Design, 10,000 bbl/day for Water Reuse.
Ideal for distributed operations, our three-stage trailer-mounted mini DAF system features complete management of liquids and solids. Chemical treatments are tailored to the source of produced water and flowback streams. This design features a twin wire belt press which allows continuous sludge dewatering.
Centralized Treatment Design, 60,000 gpd
Tank Bottom / Oily Sludge Management
• Hot water pre-soak• Oil sludge washing• Three phase separation• CZDAF oil recovery and water treatment• Belt press sludge dewatering• Bio-remediation of dewatered sludge
CZDAF Unit
Hot-water Washing
&Oil Separator
Oily Sludge
Makeup Water
Hot Water
Boiler
Oily Water
Oil Tank
Filters
Belt Press
Dewatered Sludge
Biodegradation of Residual Oil
Recovered Oil
Road Pavement & Agricultural
Uses
Sludge Holding Tank
Tank Bottom Sludge
DAF Effluent
Clear Water Tank
Filtrate
Recycled Water
Drilling Mud Recovery & Closed Loop Drilling
Slurry Pump
Shale Shaker
Mud Tank
Specific Gravity
Adjustment
Fine Cuttings
Drilling Fluid
Cuttings/ Drilling Debris
During Mud Phase
Press Feed Tank
Grinder
Filtrate Tank
CZDAF Unit
40-50% Dry Solidsto Road Pavement
TreatedEffluent
Reused For Drilling Mud
Makeup
New Drilling Mud
Drilling MudInjection
Oil Rigs
20 MicronsDrum Filter
Super Fines
Sludge
• Compact and effective• Easily integrated with existing shale shaker and mud
tank• Intercept and retain the specific compositions of
drilling mud• Maintain the homogenous status of drilling mud• Effectively remove the super fine particles and allow
water reuse• Dewater wasted fluid up to 45-50% dry solids content
• Residential and Communities
• Man Camp
• BOD and TSS removal
• Nitrification & Denitrification
• Total phosphorus removal
• Existing plant retrofit
• Wastewater reclamation
Municipal Wastewater Treatment and Reuse
Pressurized Bio-media Reactors
(Ideal For Strip Malls/Man Camps)
Bio-DAF Unit
(50,000-250,000 GPD)
• Compact and effective
• Onsite assembling in three days
• Ideal For small communities
10,000 GPD
7,500 GPD6,000 GPD
4,500 GPD
3,000 GPD1,500 GPD
• Partial BOD reductions
• Effective TSS removal
• FOG recovery
• Phosphorus removal and struvite fertilizerproduction
• Yellow grease and animal feed productions
Poultry And Meat Processing FOG Recovery and Wastewater Treatment And Reuse
From Meat or Food
Processing Plant
Circular Zoned
DAF UnitTreated
Effluent to Sewer or
City WWTP
Recovered FOG Tank
Tricanter #1
Recovered Yellow Grease
Dry solids to animal feeds
Stick Water
To CZDAF
Granular
struvite fertilize
r
Pick Heater
#2
1st ZoneFOG Scum
Sludge Holding Tank
Struvite
Slurry Tank
2nd ZoneSludge
3rd ZoneSludge
Recovered Biodiesel
Feedstocks
2nd ZoneCoagulant
/Flocculant
3rd ZoneMgCl2/
Flocculant
Dry solids to Fertilizer
Tricanter #2
Pick Heater
#1
Steam
Steam
DecantTo
CZDAF
DecantTo
CZDAF
DecantTo
CZDAF
Parameter Poultry Beef Discharge Limits (No
Surcharges)
Secondary Discharge
Limits
Flow 7 gallons/bird 4500 Liter/1000 kg LWK
TSS, mg/L 811 4,100 250* 30
BOD, mg/L 1,904 6,290 250* 30
FOG, mg/L 402 3,700
TN, mg/L 62.9
TP, mg/L 21 5
• Turnkey brown grease handling facilities
• Biodiesel feedstock productions
• Wastewater pretreatment
Brown Grease Recovery and Wastewater Treatment
Centralized Brown Grease Recovery Plant-100,000 GPD
Inlet Screen
EQ Tank
Primary DAF Unit
Bio-DAF System
Treated Effluent to
WWTP
FOG Pre-heating Tank
Tricanter
Recovered oil to biodiesel feedstock
Dry solids to composting or fertilizer
Trap Grease Hauler
Slick Water
Bio-DAF Feed Tank
Finished Oil Tank
• Continuously clean grease trap;• Inline installation;• Eliminate plugs in pipe and septic tanks;• Eliminate surcharges from downstream POTW.
Advanced Trap Grease Collection System
Model CCGT-7500 CCGT-12000 CCGT-36000 CCGT-60000
Flow, gpd 7,500 12,000 36,000 60,000
Service Person 400 600 2,000 3,000
Diameter, ft 3 4 6.67 10
Height, ft 402 3,700
Electricity 3 Phase, 240/480 VAC
3 Phase, 240/480 VAC
3 Phase, 240/480 VAC
3 Phase, 240/480 VAC
CCGT-12000
Underground Installation
CCGT-12000
Aboveground Installation
Advanced Trap Grease Collection System
CCGT-36000 Underground
Installation
CCGT-36000
Aboveground
Installation
• Virgin Pulp Mill & Recycle Pulp Mill
• Food & Beverage
• Dairy & Rendering wastewater pretreatment
• Mining Wastewater Treatment and Sludge Dewatering
• Chemical and Pharmaceutical
• Mining Camps
• Chicken farm phosphorus removal
Industrial Wastewater Treatment And Reuse
WET CZDAOF installed in paper pulp industry