You know what? Heavy metals are one of the more difficult-to-biodegrade pollutants among various pollutants, and they are easy to be absorbed and enriched by organisms. They have the characteristics of high toxicity and wide pollution, and are a type of pollutant with great potential hazards. Therefore, when dealing with wastewater containing heavy metals, we must be more cautious. This type of wastewater is mostly from industries such as mining, metal smelting and processing, and petrochemicals. The heavy metal content in industrial wastewater is not only high, but the composition is also complex and variable. If not treated in time, it will cause serious harm to the ecological environment and surrounding soil.
To effectively treat such heavy metal wastewater, we have tried many methods and found that membrane technology is more effective after summarization. Today, we will learn about the application of nanofiltration membrane technology in heavy metal wastewater treatment.
Nanofiltration membrane technology has only been used in wastewater treatment in recent years and has been used in the field of water purification before. This type of membrane element can be used for the separation of low-molecular-weight pollutants. The nanoporous aperture is between ultrafiltration membrane and reverse osmosis membrane, and is an innovative separation membrane.
By using nanofiltration membrane technology, the content of heavy metal ions in wastewater can be reduced to about 1/10 of the original, and more than 90% of the cleaning wastewater can also be recovered during the concentration process, which purifies wastewater for reuse, and improves the comprehensive utilization rate of wastewater resources.
In addition, the heavy metal content concentrated by nanofiltration membrane technology can also be recycled and reused, achieving the goal of turning waste into treasure. Nanofiltration membrane technology in heavy metal wastewater treatment achieves energy saving, emission reduction, and resource recovery. It can be said to be a more "reassuring" wastewater treatment method in the industry.
Nanofiltration membranes, in addition to softening, are mostly used in drinking water treatment to remove color, natural organic matter and synthetic organic matter (such as pesticides), trihalomethanes, disinfection byproducts, their precursors, and volatile organic compounds, while ensuring the biological stability of drinking water.
In summary, nanofiltration membrane technology has a significant effect in the treatment of heavy metal wastewater, and also minimizes or eliminates wastewater discharge. As for recyclable materials, they can also be reused, achieving the harmless treatment of heavy metal wastewater as a whole.
Jiangsu Jiuwu Hi-tech Co., LTD was established in 1997 and is one of the most professional and trusted ceramic membrane manufacturers in China. Jiuwu Hi-tech has more than 50 ceramic membrane patents and provides a range of high-quality microfiltration, ultrafiltration, nanofiltration ceramic membranes, ceramic membrane components, membrane test machines, and professional ceramic membrane filtration systems for solid-food and beverage, biotechnology, water treatment, chemical and other liquid separations. Jiuwu Hi-tech is committed to providing customers with the best quality ceramic membrane products and services.