Where these membranes are running
Ten commissioned projects, 3,220 m³/d combined. Landfill leachate, softening ahead of RO, plant extraction, municipal and chemical duty — the same element sized against five different problems, rather than one showcase plant.
Capacities are the design figure for the membrane stage in each project. Client names are withheld; the location and duty are given so that any of these can be discussed in detail under NDA.
Five duties, and the route used in each
What a buyer needs from a reference is not the name of the plant — it is the feed, the route, and the fact that the route has run for years. Each scenario below is the configuration we would look at first for that duty.
Landfill leachate
High organic load, high salinity, and a composition that shifts as the site ages. It is the solids and the scaling potential that defeat a conventional train here, not the COD.
Route: pre-screen to 400–800 µm → tubular UF → concentrate returned to the loop or passed to a downstream RO stage.
Softening ahead of RO
Hardness is usually the reason a high-recovery RO train stops short of its target. Removing it upstream, rather than managing scale on the RO membrane itself, moves the constraint to a stage where it is cheaper to handle.
Route: chemical softening and membrane separation in one stage → sludge concentrated and discharged → permeate to the RO train.
Plant extraction and material concentration
High-solids, high-viscosity process liquor where the objective is clarification and concentration rather than discharge compliance — the same open channel, used for recovery instead of treatment.
Route: tubular UF for clarification → concentrate taken for recovery → permeate returned to the process.
Municipal and domestic wastewater
External-membrane configuration, with the membrane sitting outside the biological tank. Maintenance and element replacement are decoupled from the biology, so neither stops the other.
Route: biological stage → external tubular UF → permeate to reuse.
Titanium dioxide and chemical effluent
Fine particulate and chemical load. The open channel and the wide pH window are what make the element workable here — it can be cleaned back to flux rather than replaced.
Route: conditioning → tubular UF for solids separation → permeate to further treatment.
Other duties
Oily and emulsified wastewater, desulphurisation blowdown and zero-liquid-discharge pre-treatment are assessed the same way: feed sample, bench test, then a pilot on your own stream before any sizing is committed.
The full list
| Duty | Location | Capacity | Configuration |
|---|---|---|---|
| Landfill leachate | Shandong | 480 m³/d | Tubular UF |
| Landfill leachate | Anhui | 250 m³/d | Tubular UF |
| Landfill leachate | Henan | 200 m³/d | Tubular UF |
| Landfill leachate | Jiangxi | 200 m³/d | Tubular UF |
| Landfill leachate | Xinjiang | 150 m³/d | Tubular UF |
| Softening ahead of RO | Jiangsu | 1,000 m³/d | TMF softening membrane |
| Plant extraction | Guangxi | 240 m³/d | Tubular UF |
| Plant extraction | Henan | 150 m³/d | Tubular UF |
| Municipal wastewater | Tianjin | 400 m³/d | External tubular UF |
| Titanium dioxide effluent | Hubei | 150 m³/d | Tubular UF |
Ten projects, 3,220 m³/d combined. Capacities are as designed; actual throughput follows the feed and the operating regime.
What a scenario package contains
Every project above went through the same sequence before any hardware was built. This is the part that is usually skipped, and it is the part that decides whether the plant holds its flux.
1 · Sample and analysis
Feed sample taken on site and analysed for solids, oil, hardness, salinity and particle size distribution.
2 · Bench and pilot
Bench test, then a pilot on your own stream. Flux, cleaning interval and recovery are measured rather than assumed.
3 · Design and commissioning
Sizing, element selection and arrangement drawings, then commissioning support and follow-up service.
Which of these is closest to your stream?
Tell us the duty, the solids and oil numbers and the target. If your feed resembles one of the five above, we can show you the configuration and the numbers that were used.
Send your feed data