The use of spent glauconite in lightweight aggregate production
作者： W Franus , M Franus , J Latosinska , R Wójcik
DOI:
关键词: Metallurgy 、 Wastewater 、 Geology 、 Sintering 、 Waste management 、 Sewage 、 Elution 、 Zinc 、 Glauconite 、 Porosity 、 Aggregate (composite)
摘要: The presented work has shown an application of spent glauconite bed after purification wastewater for production lightweight expanded clay aggregates. Sewage, from which it was removed Zn ions, came technological line (zincworks) Communication Equipment Factory „PZL” Świdnik. Spent used as additive in aggregate obtained using plastic method by sintering, at temperature 1140oC and 1200 oC, amouts 10, 15, 20 25% wt. with clays open-cast mine „Budy Mszczonowskie”. presence the mineral improves sinter texture, increases porosity contributes to formation glassy layer on surface Tests zinc elution samples very low mobility ions. Content water extracts is definitely lower than concentration permitted sewage discharge or soil, means that material not offensive environment can be a high quality building product.
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