TMH Series TMH20-400: High Desalination, Low Energy

TMH Series TMH20-400: High Desalination, Low Energy

The TMH20-400 is a key model of the TMH Series, mainly used in various medium and large-scale water treatment systems, which can stably intercept salt ions, organic impurities and heavy metals in high-salinity water, ensuring that the produced water meets the standards of drinking water and industrial water.

1. Product Introduction

The TMH Series: High Desalination Rate, Low Energy Consumption, Model TMH20-400 is a high-performance RO membrane specially developed to meet these two core demands. Different from conventional RO membranes that only focus on desalination rate or energy consumption, the TMH20-400 integrates high desalination performance and energy-saving technology, adopting modified aromatic polyamide composite materials and an optimized membrane structure design. Its core positioning is to break the balance between desalination rate and energy consumption, achieving ultra-high desalination effect while reducing energy consumption by a large margin, solving the problem that conventional RO membranes have high energy consumption or unstable desalination performance. The TMH20-400 is a key model of the TMH Series, mainly used in various medium and large-scale water treatment systems, which can stably intercept salt ions, organic impurities and heavy metals in high-salinity water, ensuring that the produced water meets the standards of drinking water and industrial water. Many water treatment projects prefer this model because it can reduce the energy consumption of the whole system while ensuring water quality, greatly reducing the long-term operation cost.

2. Application Scenarios

The TMH Series TMH20-400 is widely used in various water treatment scenarios, and its application form is adjusted according to the water quality, water volume and energy-saving requirements.

First, industrial water treatment. In chemical, power, textile and other industries that need a lot of desalinated water, the TMH20-400 can reduce the salt content of industrial raw water to the standard range, and its low energy consumption advantage can reduce the energy cost of the enterprise's water treatment link.

Second, municipal water purification. For cities with high groundwater salinity or insufficient surface water, the TMH20-400 can be used to build municipal water purification systems, converting high-salinity water into tap water meeting drinking standards, and reducing the energy consumption of municipal water supply.

Third, seawater desalination. In coastal areas and islands, the TMH20-400 can be matched with seawater desalination systems, with high desalination rate to ensure the quality of produced water, and low energy consumption to reduce the operation cost of desalination projects.

Fourth, groundwater treatment. In areas with high groundwater salinity, the TMH20-400 can effectively remove salt ions and harmful substances in groundwater, providing safe drinking water for residents and reducing energy consumption compared with conventional membranes.

Fifth, emergency water supply. In emergency scenarios such as drought and water shortage, the TMH20-400 can be matched with mobile water treatment equipment, with fast water production speed, high desalination rate and low energy consumption, ensuring the basic water demand of the affected people.

3. Technical Parameters

The technical parameters of theTMH Series TMH20-400 directly determine its desalination performance, energy-saving effect and adaptability, and the core technical parameters are as follows:

First, desalination rate: the standard desalination rate is ≥99.4%, which can reduce the TDS of high-salinity water (20000-45000mg/L) to below 270mg/L, meeting the drinking and industrial water standards.

Second, operating pressure: the standard operating pressure is 4.0-6.5 MPa, which is 10-20% lower than that of conventional high-desalination RO membranes, realizing low energy consumption operation.

Third, water production flux: the recommended flux is 18-22 LMH (liters per square meter per hour), balancing water production efficiency, desalination rate and energy consumption.

Fourth, membrane specifications: Model TMH20-400 adopts 8040 standard specification, with a membrane area of 38-40 ㎡, suitable for medium and large-scale water treatment systems.

Fifth, service life: under standard operation and maintenance conditions, the service life is 3-5 years, and the annual desalination rate attenuation is ≤1.2%, ensuring long-term stable performance.

Sixth, temperature adaptability: it can work stably in the temperature range of 5-45℃, adapting to the seasonal temperature change of raw water.

Seventh, energy consumption index: the energy consumption per ton of produced water is ≤1.8 kWh, which is 15-25% lower than that of conventional high-desalination RO membranes.

4. Product Advantages

The TMH Series TMH20-400 has obvious core advantages compared with conventional RO membranes, among which high desalination rate and low energy consumption are the most prominent, and it also has comprehensive advantages in stability and maintenance.

First, ultra-high desalination rate. The standard desalination rate is ≥99.4%, which can effectively remove salt ions, heavy metals and organic impurities in high-salinity water, and the produced water quality is stable and reliable.

Second, significant energy-saving effect. The standard operating pressure is 4.0-6.5 MPa, and the energy consumption per ton of water is ≤1.8 kWh, which can reduce the energy cost of the water treatment system by 15-25% for long-term operation.

Third, stable performance. The modified membrane material and optimized structure design ensure that the desalination rate and energy consumption remain stable under long-term operation, and the annual attenuation rate of desalination rate is ≤1.2%, avoiding frequent membrane replacement.

Fourth, strong adaptability. It can adapt to different water quality conditions (high salinity, high organic matter content), and can work stably in different temperature ranges, meeting the needs of various water treatment scenarios.

Fifth, easy maintenance. It has excellent anti-pollution and anti-scaling performance, the cleaning cycle is up to 3-5 months, reducing the operation and maintenance workload and cost.

Sixth, cost-saving. While reducing energy consumption, it also extends the service life of the membrane, reducing the comprehensive operation cost of the water treatment system.

5. Application Procedures

The correct application of the TMH Series TMH20-400 is the key to giving play to its core advantages and ensuring the stable operation of the water treatment system. Combining my practical experience in project operation and maintenance, the specific application procedures are as follows: First, raw water pretreatment. Filter the raw water through quartz sand, activated carbon and ultrafiltration membrane to remove suspended solids, colloids and microorganisms, ensure the inlet water turbidity is below 0.5 NTU, and avoid membrane pollution. Second, membrane module installation. According to the water treatment scale, correctly install the TMH20-400 membrane module, ensure the connection tightness, and avoid water leakage and pressure loss. Third, system debugging. After installation, flush the system with low-pressure fresh water first, then slowly increase the pressure to the standard operating range (4.0-6.5 MPa), and adjust the flux to 18-22 LMH to ensure stable operation and energy-saving effect. Fourth, daily operation and monitoring. Real-time monitor the operating parameters  of the membrane, and adjust the parameters in time according to the slight changes of raw water quality. Fifth, regular cleaning. When the membrane flux decreases by 10-15% or the operating pressure increases by 15%, use a professional cleaning agent to clean the membrane to remove scaling and pollution and restore membrane performance. Sixth, membrane replacement. When the service life expires or the desalination rate drops below 98.5%, replace the membrane module in time to ensure the high desalination and energy-saving effect.

6. Quality Standards

The TMH Series TMH20-400 must comply with strict international and domestic quality standards to ensure its high desalination performance, energy-saving effect and safety. Internationally, it follows the ISO 9001 quality management system and ASTM D4516 ; domestically, it complies with GB/T 30307-2013 "Reverse Osmosis Membrane Elements for Water Treatment" and GB/T 5749-2022 "Sanitary Standards for Drinking Water". The core quality standards include: First, the standard desalination rate must be ≥99.4%, and the annual attenuation rate shall not exceed 1.2%. Second, the standard operating pressure is 4.0-6.5 MPa, and the error shall not exceed ±3%; the energy consumption per ton of water shall not exceed 1.8 kWh. Third, it must have strong chemical stability and can resist the corrosion of chloride ions and other components in high-salinity water without damage. Fourth, the anti-pollution performance must meet the standard, and the cleaning cycle shall not be less than 3 months. Fifth, the membrane material must be non-toxic and harmless, and the produced water shall not contain harmful substances such as heavy metals, meeting the drinking water standard. Sixth, the product must have a complete quality inspection report, and the production process is traceable.

7. Working Principle

The working principle of the TMH Series TMH20-400 is based on reverse osmosis separation technology, and its dual advantages of high desalination rate and low energy consumption are mainly achieved through optimized membrane structure and material modification. Under the action of external operating pressure (4.0-6.5 MPa), raw water flows through the membrane surface. The modified aromatic polyamide composite material of the TMH20-400 forms a dense and uniform selective separation layer, which only allows water molecules to pass through, while firmly intercepting salt ions, heavy metals and organic impurities in the water. The intercepted impurities form concentrated brine and are discharged from the system, and the passed water molecules are collected and treated to become high-quality fresh water. The key to its low energy consumption is the optimized membrane structure design, which reduces the resistance of water molecules passing through the membrane, so that it can achieve high desalination efficiency under lower operating pressure, thereby reducing energy consumption. In addition, the membrane surface is treated with anti-pollution and anti-scaling, reducing the adsorption of impurities, ensuring long-term stable operation and maintaining the energy-saving effect.

8. Future Prospects

With the increasing demand for energy conservation and emission reduction in the global water treatment industry and the continuous upgrading of water treatment technology, the TMH Series TMH20-400 will have broader application prospects and development space.

First, performance optimization. Continue to optimize membrane materials and structure, further improve the desalination rate to ≥99.6%, and reduce the energy consumption per ton of water to ≤1.6 kWh, enhancing the dual advantages of high desalination and low energy consumption.

Second, intelligent operation and maintenance. Integrate with the Internet of Things and sensor technology to real-time monitor the membrane's desalination rate, energy consumption, flux and other parameters, automatically adjust operating parameters, and realize intelligent early warning and maintenance.

Third, application scenario expansion. Develop small-sized modified models based on the TMH20-400, adapting to small-scale water treatment scenarios such as rural areas and small enterprises, expanding the application scope.

Fourth, cost reduction. With the improvement of production technology, the cost of membrane materials will be further reduced, promoting the popularization and application of the TMH20-400 in more water treatment projects.

Fifth, green integration. Combine with renewable energy such as solar energy and wind energy, further reduce the carbon emission of the water treatment system, conforming to the global low-carbon development trend.

9. Conclusion

The TMH Series TMH20-400 is a high-performance RO membrane with dual core advantages of high desalination rate and low energy consumption, which plays an irreplaceable role in the modern water treatment field. It adopts modified membrane materials and optimized structure design, breaking the balance between desalination rate and energy consumption, and can achieve an ultra-high desalination rate of ≥99.4% under low operating pressure (4.0-6.5 MPa), with energy consumption per ton of water ≤1.8 kWh. The TMH20-400 is widely used in industrial water treatment, municipal water purification, seawater desalination and other scenarios, providing energy-saving, stable and reliable water support for industrial production, municipal life and emergency water supply. Its performance and quality are affected by technical parameters, application procedures and maintenance level, so it is necessary to formulate targeted application and maintenance schemes according to the actual water treatment scenario. With the continuous progress of membrane technology and the increasing demand for energy conservation and environmental protection, the TMH20-400 will be more efficient, energy-saving and intelligent, promoting the healthy development of the water treatment industry and making greater contributions to water resource utilization and energy conservation and emission reduction.

10. Frequently Asked Questions (FAQs)

Q1: What is the TMH Series TMH20-400, and what are its core advantages?

A1: The TMH20-400 is a key model of the TMH Series, featuring high desalination rate and low energy consumption. Its core advantages are ultra-high desalination rate (≥99.4%) and significant energy-saving effect (energy consumption per ton of water ≤1.8 kWh), which can stably convert high-salinity water into high-quality fresh water.

Q2: What is the applicable water quality of the TMH20-400?

A2: It is suitable for high-salinity water with TDS ranging from 20000 to 45000mg/L, such as seawater, high-salinity groundwater and industrial high-salinity wastewater.

Q3: What is the service life of the TMH20-400?

A3: Under standard operation and maintenance conditions, the service life is 3-5 years, and the annual desalination rate attenuation is ≤1.2%.

Q4: Why can the TMH20-400 achieve low energy consumption while ensuring high desalination rate?

A4: It adopts modified membrane materials and optimized structure design, which reduces the resistance of water molecules passing through the membrane, so that high desalination efficiency can be achieved under lower operating pressure, thereby reducing energy consumption.

Q5: What factors will affect the desalination effect and energy-saving effect of the TMH20-400?

A5: The main factors include raw water quality, operating parameters (pressure, flux), pretreatment effect and membrane fouling.

Q6: How to maintain the TMH20-400 to ensure its long-term high desalination and low energy consumption? A6: Do a good job in raw water pretreatment to avoid membrane pollution; monitor operating parameters in real time and keep them within the standard range; clean the membrane regularly to remove scaling and pollution; avoid sudden pressure changes during startup and shutdown.