Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation
Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation
Hanoi I'NIXTRSITY OF ScienceTechnische U.NIVERSITĂT DresdenMaster ThesisSTUDY ON PHOSPHORUS recovery from DIGESTED PIGGERY WASTEWATER BY STRUVITE PREC Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitationCIPITATIONVu Phuong ThuySupervisor: Professor. Dr. Cao The HaHanoi, November 2011ABSTRACTThis research studied on struvite precipitation as a method to remove and recovery phosphonis in (he real digested piggen wastewater to form a product as fertilizer. There are many factors that affect to the pre Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitationcipitation of struvite such as pH. ion molar ratios, aeration, mixing energy, temperature... In this study, series of jar-test experiments were conducLuận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation
ted to investigate the influence of pH, Mg:P molar ratio. Ca ions and mixing speed to the phosphorus removal efficiency and (he crystallization of strHanoi I'NIXTRSITY OF ScienceTechnische U.NIVERSITĂT DresdenMaster ThesisSTUDY ON PHOSPHORUS recovery from DIGESTED PIGGERY WASTEWATER BY STRUVITE PREC Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitationolled struvite crystallization and the quality of the generated product. The results showed that, a) At pH at 9.25. the phosphorus removal efficiency was the highest, b) Increasing Mg:P molar ratio (from 1 to 2.5) and stirring speed (from 50 rpm to 100 rpm) led to enhanced phosphorus removal efficie Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitationncy, c) Ca ions play important role in both phosphorus removal efficiency and crystallization of struvite. A presence of Ca ions at Mg:Ca of 4:1 to 2:Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation
1 will increase the phosphorus removal efficiency and affect the morphology of struvite crystals compared to Mg:Ca of 1:1, 2:1 or 1:0 d) The rate consHanoi I'NIXTRSITY OF ScienceTechnische U.NIVERSITĂT DresdenMaster ThesisSTUDY ON PHOSPHORUS recovery from DIGESTED PIGGERY WASTEWATER BY STRUVITE PREC Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitationIt is possible to attach and grow struvite crystals on stainless steel mesh in order to recover it as fertilizer.KEYWORDSStruvite, stirring speed, digested piggery wastewater, phosphorus removal, crystallization.TABLE OF CONTENTSPageList of figures.................................................... Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation.3List of tables......................................................4INTRODUCTION........................................................51REMEW OFLuận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation
LITERATURE..............................................71.1Introduction to phosphorus and Its applications...............71.2Impacts of excessive phoHanoi I'NIXTRSITY OF ScienceTechnische U.NIVERSITĂT DresdenMaster ThesisSTUDY ON PHOSPHORUS recovery from DIGESTED PIGGERY WASTEWATER BY STRUVITE PREC Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation....................91.5Struvite precipitation.......................................131.5.1Background...............................................131.5.2Struvite chemistry in wastewater.........................142GOAL AND OBJECTIVES.............................................172.1Goal........... Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation..............................................172.2Objectives...................................................173MATERIALS AND METHODS..............Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation
.............................193.1Wastewater collection and analysis...........................193.2Jar-test experiment procedure.....................Hanoi I'NIXTRSITY OF ScienceTechnische U.NIVERSITĂT DresdenMaster ThesisSTUDY ON PHOSPHORUS recovery from DIGESTED PIGGERY WASTEWATER BY STRUVITE PREC Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitationact of Calcium ions...................................2113.2.4 Impact of stirring speed....................................22Hanoi I'NIXTRSITY OF ScienceTechnische U.NIVERSITĂT DresdenMaster ThesisSTUDY ON PHOSPHORUS recovery from DIGESTED PIGGERY WASTEWATER BY STRUVITE PRECGọi ngay
Chat zalo
Facebook