Preliminary studies for removal of lead from surrogate and real soils using a water soluble chelator: adsorption and batch extraction

Article Abstract:

A polymer designed at the Los Alamos National Laboratory, called Metaset-Z, was studied for its feasibility as an alternative to EDTA as chelating polymer in the removal of lead (Pb) from contaminated soil. Metaset-Z is characterized to be soluble over a wide pH range, have a high affinity for lead, and have the capability of releasing bound lead under controllable conditions. The study sought to better understand and quantify the behavior of Metaset-Z in both surrogate and contaminated soils, with a particular view towards determining the amount of adsorption and desorption of polymer under differing solution conditions such as the presence of other ions and ionic strength. In general, the study determined that Metaset-Z can be utilized as a batch extractant for Pb-contaminated soil.

Comment:

New polymer, Metaset-Z, was studied for its feasibility as alternative chelating polymer in removing lead from contaminated soil

Product information, All Other Miscellaneous Waste Management Services, Chelating Agents, Environmental Control NEC, Environmental management, Article

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Passive monitoring method for 3-ethenylpyridine: a marker for environmental tobacco smoke

Article Abstract:

The passive measurement of concentrations of 3-ethenylpyridine as a method to assess environmental tobacco smoke in the air, is discussed. This new method is said to also be complementary for monitoring of tobacco smoke on a large-scale basis.

Tobacco Chemicals, Specialty chemicals, Tobacco industry, Tobacco, Passive smoking

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Zinc and lead removal from blast furnace sludge with a hydrometallurgical process

Article Abstract:

University researchers from Belgium developed a hydrometallurgical process which can remove zinc and lead-containing sludge from pig iron production in a blast furnace.

Belgium, Sludge Control Additives, Brief Article, Lead, Waste management, Zinc, Zinc (Metal), Sludge, Waste treatment chemicals

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