By-product treatment via calcium polysulfide

摘要

By-product materials are processed to mitigate undesirable effects. In some embodiments, industrial waste by-products are recycled using calcium polysulfide and used in building materials. In certain implementations, toxins are rendered non-viable as human pathogens by reaction with calcium polysulfide to create non-soluble sulfide crystals locked in the material as hydration is completed. The sulfides are not soluble in water and are locked into position within the resulting hydrate material, which mitigates escape of or changes of state in the toxins.

主权项

1. A method comprising:
rendering a by-product substance insoluble in water by
mixing the by-product in water with calcium polysulfide,forming negatively-charged sulfur and positively-charged ions, the positively-charged ions including a material from the by-product substance,creating non-soluble sulfide crystals by reacting the negatively-charged sulfur with the positively-charged ions; forming a calcium silicate hydrate with the non-soluble sulfide crystals; and forming a concrete-based material with the calcium silicate hydrate.