公开(公告)号：US20150000358A1

公开(公告)日：2015-01-01

申请号：US14215952

申请日：2014-03-17

Applicant: Robert S. REIMERS ,  Andrew J. ENGLANDE, JR. ,  Norman K. MURRAY ,  Yue XU

Inventor： Robert S. REIMERS ,  Andrew J. ENGLANDE, JR. ,  Norman K. MURRAY ,  Yue XU

IPC: C05G3/00 ,  C05F7/00 ,  C02F11/14

CPC classification number: C05G3/00 ,  C02F11/004 ,  C02F11/06 ,  C02F11/14 ,  C02F2101/305 ,  C02F2303/02 ,  C02F2303/04 ,  C02F2305/00 ,  C02F2305/02 ,  C05D9/02 ,  C05F7/00 ,  Y02A40/213

Abstract: In order to render sewage sludge suitable for beneficial purposes, it must be disinfected and stabilized. EDC deactivation is rapidly becoming a desirable result of any sludge or biosolids treatment process. Disclosed herein is a process of treating sewage sludge so as to stabilize the sludge that involves the presence of an iron-containing compound during dewatering of the sludge. Process embodiments described also achieve biosolid samples that have reduced EDC activity, Other embodiments disclosed involve use of a combination of iron salts ferrate and ferric chloride that are added to wastewater sludge in the dewatering step before heat drying. The biosolids resulting from sludge treated with aniron-containing compound are able to resist putrefaction for more than two to three weeks.

Abstract translation: 为了使污水污泥适合用于有益目的，必须进行消毒和稳定。 EDC失活正迅速成为任何污泥或生物固体处理工艺的理想结果。 本文公开了一种处理污泥的方法，以便在污泥脱水期间稳定涉及含铁化合物的存在的污泥。 所描述的方法实施方案还实现了具有降低的EDC活性的生物固体样品。所公开的其它实施方案涉及在加热干燥之前在脱水步骤中加入到废水污泥中的铁盐和铁氯化物的组合的使用。 由含铁化合物处理的污泥产生的生物固体能够抵抗腐败超过两至三周。

公开(公告)号：US09199885B2

公开(公告)日：2015-12-01

申请号：US14215952

申请日：2014-03-17

Applicant: Robert S. Reimers ,  Andrew J. Englande, Jr. ,  Norman K. Murray ,  Yue Xu

Inventor： Robert S. Reimers ,  Andrew J. Englande, Jr. ,  Norman K. Murray ,  Yue Xu

IPC: C05F7/00 ,  C02F11/14 ,  C05G3/00 ,  C05D9/02

CPC classification number: C05G3/00 ,  C02F11/004 ,  C02F11/06 ,  C02F11/14 ,  C02F2101/305 ,  C02F2303/02 ,  C02F2303/04 ,  C02F2305/00 ,  C02F2305/02 ,  C05D9/02 ,  C05F7/00 ,  Y02A40/213

Abstract: In order to render sewage sludge suitable for beneficial purposes, it must be disinfected and stabilized. EDC deactivation is rapidly becoming a desirable result of any sludge or biosolids treatment process. Disclosed herein is a process of treating sewage sludge so as to stabilize the sludge that involves the presence of an iron-containing compound during dewatering of the sludge. Process embodiments described also achieve biosolid samples that have reduced EDC activity, Other embodiments disclosed involve use of a combination of iron salts ferrate and ferric chloride that are added to wastewater sludge in the dewatering step before heat drying. The biosolids resulting from sludge treated with aniron-containing compound are able to resist putrefaction for more than two to three weeks.

Abstract translation: 为了使污水污泥适合用于有益目的，必须进行消毒和稳定。 EDC失活正迅速成为任何污泥或生物固体处理工艺的理想结果。 本文公开了一种处理污泥的方法，以便在污泥脱水期间稳定涉及含铁化合物的存在的污泥。 所描述的方法实施方案还实现了具有降低的EDC活性的生物固体样品。所公开的其它实施方案涉及在加热干燥之前在脱水步骤中加入到废水污泥中的铁盐和铁氯化物的组合的使用。 由含铁化合物处理的污泥产生的生物固体能够抵抗腐败超过两至三周。