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 University of ScienceTECHNISCHEUNIVERSITATDRESDENTechmsche Umversităt DresdenMaster ThesisSTUDY ON PHOSPHORUS RECOVERY FROMDIGESTED PIGGERY WAST Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation TEWATER BY STRUVITEPRECIPITATIONVu Phuong ThuySupervisor: Professor. Dr. Cao The HaHanoi, November 2011ACKNOWLEDGEMENTSIwould like to thank Professor Doctor Cao The Ha, my supervisor, and greatly appreciate his supervision, advice, and guidance from the early stage of this research as well as giving Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation me experiences throughout the work. During the time I was doing the research, he also gave the great opportunity, the best support and conditions inLuận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation
many ways for me to go to National Institute for Environment Studies, Japan to participate in the training course "Sustainable Landfill Management”.MaHanoi University of ScienceTECHNISCHEUNIVERSITATDRESDENTechmsche Umversităt DresdenMaster ThesisSTUDY ON PHOSPHORUS RECOVERY FROMDIGESTED PIGGERY WAST Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation Science for helping me with analytical techniques.I would like to thank to Dr. Kazuyoshi Suzuki, Dr. Anton Perera, Prof. Phil Westerman for your helps with answering my questions.Finally. I would like to thank to my family, my friends who are always supportive and encourage me during difficult time Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation s, especially my mom who helped me to take care of the experiment that was performed in my house.ABSTRACTThis research studied on struvite precipitatiLuận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation
on as a method to remove and recovery phosphorus in the real digested piggery wastewater to form a product as fertilizer. There are many factors that Hanoi University of ScienceTECHNISCHEUNIVERSITATDRESDENTechmsche Umversităt DresdenMaster ThesisSTUDY ON PHOSPHORUS RECOVERY FROMDIGESTED PIGGERY WAST Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation ments were conducted to investigate the influence of pH. Mg:P molar ratio. Ca ions and mixing speed to the phosphorus removal efficiency and the crystallization of struvite. Experiments with lab-scale reactor in hatch and continuous mode were also conducted to investigate the kinetic of phosphorus r Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation emoval, the controlled struvite crystallization and the quality' of the generated product. The results showed that, a) At pH at 9.25. the phosphorus rLuận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation
emoval 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 phosphorHanoi University of ScienceTECHNISCHEUNIVERSITATDRESDENTechmsche Umversităt DresdenMaster ThesisSTUDY ON PHOSPHORUS RECOVERY FROMDIGESTED PIGGERY WAST Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation Mg:Ca of 4:1 to 2:1 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 constant of phosphorus removal in the pilot-scale experiment with digested piggery wastewater when Mg ions added estimated as 0.050 min Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation 1 or 3.00 hr'1, e) It is possible to attach and grow struvite crystals on stainless Steel mesh in order to recover it as fertilizer.KEYWORDSStruvite,Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation
stirring speed, digested piggery wastewater, phosphorus removal, crystallization.TABLE OF CONTENTSPageList of figures.................................Hanoi University of ScienceTECHNISCHEUNIVERSITATDRESDENTechmsche Umversităt DresdenMaster ThesisSTUDY ON PHOSPHORUS RECOVERY FROMDIGESTED PIGGERY WAST Luận 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 phosphorus in water streams...................81.3Recovery of phosphorus.............................................81.4Phosphorus removal an Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation d recovery techniques.........................91.5Struvite precipitation............................................131.5.1Background.................Luận văn thạc sĩ study on phosphorus recovery from digested piggery wastewater by struvite precipitation
...................................131.5.2Struvite chemistry in wastewater..............................142GQAL AND OB.JECTIVES.t„,t„„„t„,t„„,„„,t„t„„Hanoi University of ScienceTECHNISCHEUNIVERSITATDRESDENTechmsche Umversităt DresdenMaster ThesisSTUDY ON PHOSPHORUS RECOVERY FROMDIGESTED PIGGERY WASTHanoi University of ScienceTECHNISCHEUNIVERSITATDRESDENTechmsche Umversităt DresdenMaster ThesisSTUDY ON PHOSPHORUS RECOVERY FROMDIGESTED PIGGERY WASTGọi ngay
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