Iranian researchers invent nanoabsorbent to remove heavy metals from wastewater

Sponsored by

TEHRAN, Iran, Jan. 21, 2010 -- Iranian researchers have synthesized a silica nanopore and modified its structure to absorb more heavy metals from industrial wastewaters.

Hamid Sepehrian and his colleagues managed to modify MCM-41 silica nanopore by thiol and amine functional groups and synthesized a new nanopore absorbent with high heavy cations absorption capacity.

"We first produced MCM-41 silica nanopore and then used (3-mercaptopropyl) trimetoxy silane and (3-aminopropyl) trietoxy silane to functionalize nanopore structure," Sepehrian said to the news service of INIC about the synthesis steps of the mentioned nanopore.

For this purpose, the researchers refluxed a definite amount of MCM-41 nanopore and the mentioned organic reactants in toluene. After a definite time, they filtered it, rinsed several times with ethanol and finally dried it.

"For measuring absorption level we stirred mixtures of absorbent and different ions and measured ion level in the mixture after a definite time," Sepehrian added.

The results show that zinc ion absorption on the synthesized absorbent has increased considerably compared to two previous absorbents which were functionalized just by one functional group.

All industries in which wastewaters containing heavy cations like chrome, mercury, zinc and zirconium exist can use this product.

The details of the present study are available at the Chinese Journal of Chemistry, volume 27, pages 2171 to 2174, 2009.

###

Sponsored by

Did You Like this Article? Get All the Water Industry News Delivered to Your Inbox or Mailbox

Subscribe to one of our magazines or email newsletters today at no cost and receive the latest information.

TODAY'S HEADLINES

China's first produced water treatment plant to receive advanced MVC evaporators

IDE Technologies recently announced that Bomo Environmental Engineering, part of the SPBC (BOMO) group, has purchased two IDE horizontal MVC evaporators to establish a new produced water treatment facility in Karamay, Xinjian -- the first of its kind in China.

ACWA showcases CA water agencies’ innovative conservation campaigns at conference

During a presentation at the State Water Resources Control Board, the Association of California Water Agencies highlighted some examples of innovative water conservation campaigns that local water districts are carrying out to encourage customers to conserve water during drought.

Japan waterworks bureau to save water, costs with Sensus smart water network

The Kobe City Waterworks Bureau in Japan has announced that it is expecting to achieve greater water conservation and operational efficiency as it develops a new smart water network from Sensus.

IDA World Congress: Water Authority chair welcomes industry experts to event

San Diego County Water Authority Board Chair Mark Weston welcomed an estimated 1,500 water industry experts from around the world to the International Desalination Association's World Congress on Desalination and Water Reuse, taking place Aug. 30-Sept. 4 in San Diego, Calif.

FOLLOW US ON SOCIAL MEDIA

  

 


© 2015. PennWell Corporation. All Rights Reserved. PRIVACY POLICY | TERMS AND CONDITIONS