Sealing tar lake, esp. of brown coal gasification tar - by forming calcium carbonate surface layer to prevent emissions
摘要
Sealing of tar lakes or the like involves forming a CaCO3 layer on the lake by introducing CaO in the presence of existing or added water. Additional material, esp. shredded waste paper, waste wood or waste plastics, is pref. introduced into the tar lake for mechanical stabilisation of the CaCO3 layer. Gypsum may also be introduced into the tar lake. USE/ADVANTAGE - Esp. for sealing tar lakes from brown coal gasification, e.g. the 'Terpe' and 'Zerre' dumps of the former DDR. Emissions are prevented or restricted in a simple and effective manner.
申请公布号
DE4335706(A1)
申请公布日期
1994.04.07
申请号
DE19934335706
申请日期
1993.10.20
申请人
ROESCH, HANS, 78052 VILLINGEN-SCHWENNINGEN, DE;GEIER-HENNINGER, KURT, 78176 BLUMBERG, DE
发明人
ROESCH, HANS, 78052 VILLINGEN-SCHWENNINGEN, DE;GEIER-HENNINGER, KURT, 78176 BLUMBERG, DE