21. Another chemical treatment involves treating wheat with a silicon solution or calcium silicate slag. 22. For the most part, the coins were readily identified after drying and chemical treatment . 23. Lots of those chemical treatments can't be used on them until they get older. 24. Repeated chemical treatments may be necessary, along with digging up the roots where feasible. 25. It is also possible to control Legionella risks by chemical treatment of the water. 26. Where chemical treatment is used, it takes longer to dissolve in the treated water. 27. Just's process included chemical treatment of the ore, completely omitting the costly techniques used before. 28. Chemical treatment can easily destroy the Poison and make the sand fertile according to him.29. Where there is no chemical treatment , he says so. 30. The urine then undergoes purification and a chemical treatment .
