You are here: Accueil -  Barbour Femme Quilted Veston -  Shaped Liddesdale Quilted Veston -  Décent Barbour Femme Pas Cher Shaped Liddesdale Quilted Veston- Marine

Décent Barbour Femme Pas Cher Shaped Liddesdale Quilted Veston- Marine

Décent Barbour Femme Pas Cher Shaped Liddesdale Quilted Veston- Marine

The paper discusses the application of natural zeolites from clinoptilolite group for mercury removal from industrial effluents from copper smelter and refinery. The experiments included studies on sorption mechanisms (adsorption or ion-exchange) and sorption equilibria. The dominating mechanism of sorption with zeolite was found to be ion exchange and the maximum sorption capacity was evaluated as 1.21 Barbour Femme Ebay meq/g sorbent. Three cation-exchange groups Barbour Bedale Pas Cher were identified and deprotonation acidity constants (pKa) 3.1, 7.3 and 10.7 were determined. The results of model experiments were verified by the treatment of the industrial effluent containing elevated levels of Hg2+ ions on the laboratory as well as on full-plant scale. Laboratory and industrial scale experiments showed that zeolite was capable of mercury ions removal from the effluent. Currently, the company uses the proposed method for effluents treatment.

Printed circuit board (PCB) scrap has a metal content of nearly 28%, including an abundance of nonferrous metals such as copper, lead, and tin. The purity of precious metals in PCBs is more than 10 times that of content-rich minerals. Therefore, the recycling of PCBs is an important subject, not only from the viewpoint of waste treatment, but also with respect to the recovery of valuable materials. A new process was investigated which involved mechanical crushing, screening, drying Barbour Vente En Ligne and electrostatic separation via corona discharge. The results show that (1) a two-step crushing process could completely strip metals from base plates; (2) the effect of aggregation opposed the production on fine powders; (3) particle sizes between 0.6 and 1.2 mm are most feasible for separation in industrial application; (4) Corona electrostatic separation is an efficient and environmental means for recovering metals from PCBs.

0 Commentaires

Speak Your Mind