Stop paying extortionate trucking fees to haul leachate away. We deliver containerized DTRO (Disk Tube RO) architectures designed to crush extreme COD, neutralize heavy metals, and guarantee strict EPA discharge compliance on-site.
Leachate chemistry changes as the landfill ages. We architect dynamic systems that adapt to the lifecycle of your site.
Fresh leachate (< 5 years) with extreme BOD/COD ratios. Requires heavy biological digestion before membrane separation.
Older leachate (> 10 years) where biology fails. Characterized by un-biodegradable organics and heavy metals.
The highly toxic reject stream from the RO/DTRO process. Must be reduced to minimal volume for final disposal.
Standard water filters are instantly destroyed by landfill leachate. It is the ultimate test of fluid engineering. Here is the deep-dive into how WANDONG ENVIRO architects around the three deadliest solid waste constraints.
Many municipal landfills and transfer stations do not have pipeline access to centralized sewage plants. When leachate pools fill up, operators are forced to hire specialized vacuum trucks to haul the toxic liquid away. At costs exceeding $50 to $100 per ton, a medium-sized landfill bleeds millions of dollars annually just on logistics.
The Engineered Cure: WANDONG ENVIRO deploys On-Site Containerized DTRO Skids. We bring the treatment plant directly to the leachate pool. Our 40HQ containerized systems can process up to 200 mยณ/day on-site, discharging clean permeate safely into the environment and reducing the volume requiring trucking by up to 80%. The OPEX savings typically pay for the entire equipment CAPEX in under 18 months.
Leachate contains extreme levels of Chemical Oxygen Demand (COD > 20,000 mg/L), heavy metals, and suspended solids (SDI > 15). If you push this liquid into a standard spiral-wound RO membrane, the narrow feed spacers will act like a net, instantly trapping the sludge. The membrane will irreversibly block and rupture within hours.
The Engineered Cure: We utilize Disk Tube Reverse Osmosis (DTRO) technology. Unlike standard RO, DTRO uses an open-channel design. The membranes are stacked like octagonal discs with a massive 3mm flow channel. The fluid dynamics create intense turbulence, preventing solids from settling. DTRO can directly treat raw leachate with an SDI up to 20 without complex pre-treatment, making it virtually un-blockable.
Environmental Protection Agencies (EPA) globally have zero tolerance for landfill leachate spills. Discharging untreated or poorly treated leachate into municipal sewers or local waterways results in catastrophic fines, facility shutdowns, and criminal liability for operators. The effluent must meet exact, non-negotiable chemical thresholds.
The Engineered Cure: Our Two-Stage DTRO architectures act as an absolute Regulatory Firewall. The 0.0001ฮผm membrane pores physically reject 99.9% of heavy metals, ammonia nitrogen, and complex organics. The resulting permeate is visually indistinguishable from bottled water and strictly complies with the most aggressive EPA discharge limits globally.
A 3-year financial projection for a 100 mยณ/day landfill. Compare the endless OPEX of vacuum trucks vs. the CAPEX of an on-site DTRO plant.
We utilize a heavy-duty, high-pressure process block flow that guarantees stable recovery of mature leachate without complex biological pre-treatment.
Open channel disks crush raw leachate. Rejects 99% of COD and metals.
Treats Stage 1 permeate to guarantee strict ammonia limits.
DTRO is designed for extreme conditions. It tolerates raw leachate parameters that would instantly destroy standard spiral-wound RO membranes.
| PARAMETER | MAX LIMIT (DTRO FEED) |
|---|---|
| COD (Chemical Oxygen Demand) | < 30,000 mg/L |
| BOD5 | < 10,000 mg/L |
| Ammonia Nitrogen (NH3-N) | < 2,000 mg/L |
| SDIโโ | Up to 20 (No UF required) |
When inlet conditions are met, WANDONG ENVIRO contractually guarantees the following safe discharge standards.
| OUTPUT METRIC | GUARANTEED VALUE |
|---|---|
| Product COD | < 50 mg/L |
| Ammonia Nitrogen (NH3-N) | < 15 mg/L |
| Heavy Metals | Non-Detectable |
| Visual Appearance | Crystal Clear (Colorless) |
DTRO systems operate at extreme pressures (up to 120 bar) to overcome the osmotic pressure of toxic brine. Human error at these pressures is dangerous. Our Siemens PLC manages the physics so your operators stay safe.
High-pressure plunger pumps are the heart of the DTRO system. To prevent hydraulic shock and mechanical failure, the PLC executes a strict "soft-start" protocol, ramping up pressure gradually via Variable Frequency Drives (VFDs) while monitoring high-pressure manifolds for micro-leaks.
Because leachate is highly scaling, Automated Chemical Cleaning (CIP) is mandatory. The system is programmed to automatically flush the DTRO disks with clean permeate water upon every shutdown. When flux drops, the operator initiates an automated acid or alkaline wash sequence directly from the touch screen.
Standardized for global ocean freight. Containerized units can be dropped directly next to the leachate pool.
| System Model | Capacity (mยณ/day) | Application | Format |
|---|---|---|---|
| WD-DTRO-50 | 50 mยณ/day | Small Landfill | 1 ร 20'GP Container |
| WD-DTRO-100 | 100 mยณ/day | Medium Landfill | 1 ร 40'HQ Container |
| WD-DTRO-200 | 200 mยณ/day | Large Transfer Station | 2 ร 40'HQ Container |
| WD-STRO-500 | 500 mยณ/day | Tube RO (Lower COD) | Custom Modular |
Landfill operators face intense environmental scrutiny. Our systems are engineered physically and chemically to meet the strictest global standards, ensuring zero fines and safe environmental discharge.
Permeate strictly complies with local EPA / Municipal Sewer discharge thresholds for COD, BOD, and heavy metals.
Eliminates the risk of toxic leachate overflowing and contaminating local groundwater aquifers.
If the feed water matches the provided raw leachate report, we contractually guarantee the output water quality. No excuses.
Stop paying extortionate trucking fees. Submit your leachate parameters, and our engineering team will architect a custom, containerized DTRO solution guaranteed to meet EPA discharge limits.
Receive a custom P&ID and Factory-Direct project budget within 48 hours.
