Advanced Membrane Technology

Efficient and Economical
Ammonia Removal Technology

PTFE-TMCS
Membrane Contactor

With the excellent chemical resistance
of PTFE membranes and
TMCS transmembrane chemisorption technology,
maximizing ammonia removal efficiency

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Technology Overview

PTFE-TMCS Membrane Contactor

Efficient and Economical Ammonia

Removal with PTFE-TMCS

- PTFE membrane with high resistance to acids, alkalis, and organics — improved membrane lifespan vs. conventional technology
- Higher performance at elevated temperatures compared to PP material
- Improved ammonia removal efficiency vs. conventional technology through TMCS (Transmembrane Chemisorption)
- Applicable to degassing systems beyond ammonia
- Enhanced operational convenience with low-pressure operation for improved energy efficiency
- Compact configuration possible compared to conventional technology

Application Areas

Diverse application areas of the PTFE-TMCS Membrane Contactor

Industrial Wastewater NH₃-N removal from industrial wastewater

Fertilizer & Chemical Ammonia recovery from fertilizer manufacturing processes

Livestock Wastewater Treatment of high-concentration ammonia livestock wastewater

Semiconductor & Display Degassing system for ultrapure water production

Leachate Treatment Ammonia removal from landfill leachate

Resource Recovery Recovering ammonia as valuable resources such as ammonium sulfate

Features

Enhanced Durability with PTFE Membrane

PTFE Membrane for Enhanced Durability

- PTFE is an excellent material for producing degassing membranes due to its super-hydrophobic properties

- Superior to PP in corrosion, acid, alkali, heat resistance, hydrophobicity, and insolubility

- Widely applicable for degassing or Transmembrane Chemisorption (TMCS) purposes

A pharmaceutical company
(high organics, high solvent content)

PP membrane lifespan: 6 months

PTFE membrane lifespan: 2+ years of normal operation

99% Ammonia Nitrogen Removal Achievable

- When applying the PTFE-TMCS system for ammonia removal:
- Single-stage configuration can remove approximately 80% of ammonia
- 2-stage series achieves 96%, 3-stage series achieves 99% ammonia nitrogen removal

Ionization Equilibrium of Free Ammonia [NH₃(g)] by pH and Temperature

Ammonia Ionization Equilibrium by pH and Temperature

■ Adjust wastewater pH to alkaline
■ At pH 11+, ammonium ions (NH₄⁺) dissociate into free ammonia (NH₃)
■ NH₃ migrates through PTFE membrane micropores to absorbent (H₂SO₄), then neutralization (2NH₃ + H₂SO₄ → (NH₄)₂SO₄)
■ As free ammonia (NH₃) is removed, NH₃ concentration on the absorbent side decreases
■ Concentration gradient is maintained, allowing continuous NH₃ permeation and removal

Modular Design for Rapid Installation & Mobility

Container-type modular design for easy transport
(skid-mounted design available)

Plug-and-play: simply connect piping and electrical after delivery

Adaptable to industrial parks, municipal wastewater plants, and mobile treatment facilities

Conventional Technology vs Membrane Separation

Conventional Technology

TechnologyAmmonia Stripping Tower

Removal Rate90%

FootprintStripping tower (10 m+), large blowers require large footprint

MaintenanceMany elements: pumps, blowers, stripping tower

NoiseNoise from blower operation

EnergyHigh power from large blowers

InstallationExtensive on-site installation required

Membrane Method (PTFE-TMCS)

TechnologyPTFE-TMCS

Removal Rate99%

FootprintCompact configuration possible

MaintenanceSimple with automated operation

NoiseAlmost no noise

EnergyLow power with low-pressure operation

InstallationSkid-mounted, container-type modular design

Category	Conventional	Membrane Method
Technology	Ammonia Stripping Tower	PTFE-TMCS
Ammonia Removal Rate	90%	99%
Footprint	Stripping tower (generally 10 m+ height), large blowers require large footprint	Compact configuration possible
Maintenance	Many maintenance elements: pumps, blowers, stripping tower	Simple maintenance with automated operation
Noise	Noise from blower operation	Almost no noise
Energy Consumption	High power consumption from large blowers	Low power consumption with low-pressure operation
Ease of Installation	Extensive on-site installation required	Skid-mounted, container-type modular design

Product Specifications

Specification	PTFE-TMCS-2020	PTFE-TMCS-4040	PTFE-TMCS-8040
Membrane Material	PTFE	PTFE	PTFE
Effective Membrane Area	1.7 m²	12 m²	65 m²
Nominal Pore Size	0.1 µm	0.1 µm	0.1 µm
Membrane Type	Hollow Fiber	Hollow Fiber	Hollow Fiber
Dimensions	Φ50 × 800 mm	Φ90 × 1225 mm	Φ200 × 1375 mm
Inlet/Outlet (Pipe Size)	DN10	DN25	DN40
Housing/Sealing Material	UPVC	UPVC	UPVC
Potting/Adhesive Material	Epoxy Resin	Epoxy Resin	Epoxy Resin
Max Operating Temp.	≤ 60 °C	≤ 60 °C	≤ 60 °C
Allowable pH Range	0-14	0-14	0-14
NH₃-N Removal Rate	99.90%	99.90%	99.90%

Case Studies

PTFE-TMCS Membrane Contactor Installation Track Record

No.	Region	Project Type (Capacity)	Influent NH₃-N (mg/L)	Effluent NH₃-N Target (mg/L)	Treatment Process
1	Sichuan	Vanadium mine industrial wastewater (280 ㎥/day)	5,000	< 100	Pre-treatment + Ammonia Removal Membrane System
2	Chongqing	Pesticide plant wastewater (100 ㎥/day)	3,000–5,000	< 100	Pre-treatment + Ammonia Removal Membrane System
3	Kunshan	Semiconductor etching wastewater (240 ㎥/day)	500–8,000	< 100	Pre-treatment + Ammonia Removal Membrane System
4	Shandong	Pigment wastewater (200 ㎥/day)	1,680	< 45	Pre-treatment + 2-Stage Ammonia Removal Membrane System
5	Shandong	Pharmaceutical wastewater (300 ㎥/day)	3,000	< 100	Pre-treatment + 3-Stage Ammonia Removal Membrane System
6	Anhui	Optoelectronic etching wastewater (100 ㎥/day)	1,680	< 20	Pre-treatment + 4-Stage Ammonia Removal Membrane System
7	Shanghai	Semiconductor wastewater (120 ㎥/day)	200	< 10	2-Stage Ammonia Removal Membrane System

PTFE-TMCSMembrane Contactor