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11. 发明授权

US08709963B2 Molecular sieve 有权
标题翻译：分子筛
公开(公告)号：US08709963B2
公开(公告)日：2014-04-29
申请号：US13420600
申请日：2012-03-14
申请人： Hongqiang Ren , Tao Zhang , Lili Ding
发明人： Hongqiang Ren , Tao Zhang , Lili Ding
IPC分类号： B01J29/06 , B01J27/182
CPC分类号： C02F1/281 , B01J20/18 , B01J20/28057 , B01J20/28064 , C01B37/00 , C01P2006/14 , C01P2006/16 , C02F2101/16
摘要： A molecular sieve including a basic skeleton of a molecular sieve and magnesium and phosphorus compounds as functional materials supported on the inner surface of the basic skeleton. A method of preparation of a modified molecular sieve including (1) dissolving a magnesium salt in water to obtain a magnesium salt solution; (2) dissolving phosphoric acid in water to obtain a phosphoric acid solution; (3) adding a molecular sieve to the magnesium salt solution, stirring, standing, drying for dehydration, and baking; and (4) adding a modified molecular sieve with supported magnesium compounds obtained from the step (3) to the phosphoric acid solution, stirring, standing, drying for dehydration, and baking to obtain a modified molecular sieve. The modified molecular sieve has high selectivity for ammonia nitrogen in wastewater.
摘要翻译：包括分子筛的基本骨架的分子筛和作为功能材料的镁和磷化合物被支撑在基本骨架的内表面上。一种制备改性分子筛的方法，包括（1）将镁盐溶于水中以获得镁盐溶液; （2）将磷酸溶解在水中，得到磷酸溶液; （3）向镁盐溶液中加入分子筛，搅拌，静置，干燥脱水，烘烤; 和（4）将由步骤（3）获得的负载的镁化合物的改性分子筛加入到磷酸溶液中，搅拌，静置，干燥脱水，并烘烤得到改性分子筛。改性分子筛对废水中的氨氮具有较高的选择性。

12. 发明授权

US08329040B2 Method for removing ammonia nitrogen in coking wastewater 有权
标题翻译：焦化废水中氨氮去除方法
公开(公告)号：US08329040B2
公开(公告)日：2012-12-11
申请号：US12672095
申请日：2008-07-25
申请人： Hongqiang Ren , Lili Ding , Tao Zhang
发明人： Hongqiang Ren , Lili Ding , Tao Zhang
IPC分类号： B01D21/00 , C02F1/52
CPC分类号： C02F1/5254 , C02F1/025 , C02F1/5236 , C02F1/66 , C02F9/00 , C02F11/10 , C02F11/121 , C02F2101/16 , C02F2103/16 , C02F2103/365
摘要： A new method for removing ammonia nitrogen in coking wastewater is disclosed in this invention. It comprises steps as follow: introducing coking wastewater into a reaction pool into which magnesium and phosphate are added; adding sodium hydroxide to regulate the PH of the mixture around 9.0-10.5; separating the supernatant and the precipitate after proper agitation and natural precipitation; dehydrating the precipitate and then adding alkaline fly ash, water to the dehydrated precipitate and stirring the mixture; decomposing the mixture with heating and absorbing the ammonia gas thereof produced with acidic solution. In consideration of high concentration of ammonia nitrogen in coking wastewater, this invention aims at quick and efficient treatment. The concentration of ammonia nitrogen in treated water meets the highest discharge standard stipulated in [China National] Integrated Wastewater Discharge Standard (GB8978-96). Meanwhile, this invention provides a new way for beneficial utilization of the alkaline fly ash as well. The chemicals adopted for wastewater precipitation in this invention can be recovered for recyclable use, which consequently cuts down the total cost of the wastewater treatment.
摘要翻译：在本发明中公开了一种在焦化废水中除去氨氮的新方法。包括以下步骤：将焦化废水引入加入镁和磷酸盐的反应池中; 加入氢氧化钠调节混合物的PH值在9.0-10.5左右; 在适当搅拌和自然沉淀后分离上清液和沉淀物; 将沉淀物脱水，然后加入碱性飞灰，将水加入脱水沉淀中并搅拌混合物; 通过加热分解混合物并吸收其用酸性溶液产生的氨气。考虑到焦化废水中高浓度的氨氮，本发明旨在快速有效地处理。处理水中氨氮浓度符合“中国国家综合污水排放标准”（GB8978-96）规定的最高排放标准。同时，本发明也提供了有益地利用碱性飞灰的新途径。在本发明中用于废水沉淀的化学品可以回收用于可回收利用，因此降低了废水处理的总成本。

13. 发明授权

US08273249B2 Method integrating electrochemical oxidation and flocculation processes for pre-treatment of coking wastewater 有权
标题翻译：整合电化学氧化和絮凝过程的焦化废水预处理方法
公开(公告)号：US08273249B2
公开(公告)日：2012-09-25
申请号：US12672112
申请日：2008-07-25
申请人： Hongqiang Ren , Yunjun Yang , Lili Ding , Xiaolei Shi
发明人： Hongqiang Ren , Yunjun Yang , Lili Ding , Xiaolei Shi
IPC分类号： B01D21/00 , B01D21/01 , C02F1/52 , C02F1/72 , C02F1/461 , C02F1/00 , C02F1/34 , C02F1/48 , C02F1/76 , B03D3/00
CPC分类号： C02F1/4608 , C02F1/5236 , C02F1/56 , C02F1/66 , C02F1/68 , C02F1/74 , C02F3/00 , C02F9/00 , C02F2001/46142 , C02F2101/30 , C02F2103/16 , C02F2201/46125 , C02F2201/46135 , C02F2201/4617 , C02F2201/46175 , C02F2209/44
摘要： A new method that integrates electrochemical oxidation and flocculation processes for removing ammonia nitrogen in coking wastewater is disclosed in this invention. It comprises steps as follow: first, adjusting the PH of coking wastewater and adding Fe2+ into the wastewater; then leading the wastewater containing Fe2+ through such 5 areas as pulsed high-voltage discharge oxidation area, pulsed high-frequency DC electrolytic oxidation area, microbubble oxidation area, flocculation area and precipitation area in succession. High-voltage pulse and high-frequency pulse are two different mechanisms for achieving strong oxidation. With help of both solid and liquid catalysts, these two oxidations can work synergistically. The recalcitrant organic chemicals are effectively destroyed and satisfactorily removed out of wastewater. The high-concentration coking waster pretreated with this method will meet Chinese highest discharge standard as long as the routine biochemical treatment is applied thereafter. The total investment on equipments and operation expenditure of the whole system is economically modest, which, together with its highly efficient treatment performance, ensures its extensive application in the field of wastewater treatment.
摘要翻译：在本发明中公开了一种将焦化废水中氨氮的电化学氧化和絮凝过程整合的新方法。它包括以下步骤：首先调整焦化废水的PH值，并向废水中加入Fe2 +; 然后通过脉冲高压放电氧化区，脉冲高频直流电解氧化区，微泡氧化区，絮凝面积和沉淀面积等5个区域连续引导含有Fe2 +的废水。高压脉冲和高频脉冲是实现强氧化的两种不同机制。在固体和液体催化剂的帮助下，这两种氧化可以协同工作。顽固的有机化学物质被有效地破坏，令人满意地从废水中除去。用这种方法预处理的高浓度焦化废水，只要其后应用常规生化处理，将符合中国最高排放标准。整个系统的设备投入和经营支出总体经济适用，加上高效的处理性能，确保了其在污水处理领域的广泛应用。

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