Arsenic is a common source of pollution in drinking water in nature, from arsenic-containing rocks, soils, etc., and then slowly diffuses into the water. Arsenic is often present in both organic and inorganic arsenic forms, whereas inorganic arsenic is more prevalent in water and more toxic.
The countries with serious arsenic pollution in groundwater are India, Bangladesh, Vietnam, Argentina, Chile, Mexico, China, and Hungary. In China's Taiwan, Xinjiang and Inner Mongolia, local groundwater contains up to 2000ug/L of arsenic.
At present, the World Health Organization stipulates that arsenic in drinking water should not exceed 10 ppb.
Adsorption is one of the effective methods for arsenic removal in drinking water. It has the advantages of simple operation and stable operation. Commonly adsorbents are activated alumina, activated carbon, zeolite, functional resins and the like. However, most of the adsorbents have problems of low adsorption amount, poor selectivity, or arsenic content after treatment is still exceeding the standard. Ion exchange resin can combine the advantages of various adsorbents, and by loading some metal oxides, which leads a good selectivity. Through the control of the internal pores of the resin, the adsorption capacity of the resin can be improved, thereby more accurately improving the adsorption efficiency of the resin. Each liter of resin can adsorb more than 1.4g / L of arsenic.
Arsenic in groundwater is a trace amount of toxic elements, so the resin has a long service life and can be realized by a fixed bed process. It is the most valuable solution for municipal underground water treatment.
In our case, the output arsenic content can be controlled to be less than 5 ppb. So, Approximately 1 liter of resin can handle 4.5 square meters of water if an inlet content of 0.3 ppm.
If you need to solve the problem of excessive arsenic in groundwater, please contact Sunresin!
Sunresin has established its Remote Solution Operation and Monitoring Center (RESOM) recently, in an effort not only to offset the impact of the travel restrictions due to the pandemic, but also to develop this innovative initiative to a higher and permanent level in a sustainable manner.
The Seplite LSF983 is very suitable for hardness (calcium and magnesium) removal from potable water(household water filters, pitchers etc), beverage and food applications. Besides hardness, it can also help to reduce certain level of heavy metals as Copper, Lead etc.
The 20th World Pharmaceutical Raw Materials China Exhibition, CPhI China 2020, will take place from December 16th to 18th, 2020, at Shanghai New International Expo Center (SNIEC). Sunresin Invites You to Visit the 20th World Shanghai CPhI Exhibition.