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1.发明公开
公开(公告)号：EP4166514A1
公开(公告)日：2023-04-19
申请号：EP21382918.7
申请日：2021-10-13
申请人： FCC Aqualia, S.A.
IPC分类号： C02F3/28
摘要： The present invention relates to a one-stage device for treating wastewater, such as unsettled sewage, specially wastewater having sub-mesophilic temperatures and/or showing high fluctuations of temperatures over the year, the device being essentially made of a combination of a pulsating UASB reactor with a non-heated solids anaerobic digester located below the UASB reactor, comprising a baffle sloping partition element connecting both chambers; in such a way that the sludge produced during the process inside the UASB reactor is settled downwards to the digester, recycled and sent to the UASB reactor by a gas-lift pump that operates with the biogas generated in the anaerobic digester. The UASB reactor comprises a mixing and injecting device of wastewater that works by pulses, and that not only feeds and mixes the reactor, but it also mixes the sludge bed of the digester, in different operational modes. The invention also discloses the method for treating wastewater.
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公开(公告)号：EP4344761A1
公开(公告)日：2024-04-03
申请号：EP22382912.8
申请日：2022-09-30
申请人： FCC Aqualia, S.A.
摘要： The present invention is directed to a sand washer device for used in continuous backwash sand (CBS) filters and a method for treating water and wastewater using this filter, comprising a regulation system of the washed sand and the washing water flows according to influent water contamination, also comprising a system to unclog the air-lift pump of the sand washer device during starting or normal operation of the filter without affecting effluent water quality. The invention substantially improves filtered water quality and reduces energy and washing water flow.
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