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Abstract ABS-155

Formation of Struvite from dairy cow urine by aeration and crystallization using a vertical reactor Luluk Edahwati (a*), Wahyu Dwi Lestari (a), Sutiyono (a), J Jamari (b), A P Bayuseno (b) Corresponding Author: Luluk Edahwati

Question & Answer to the Presentation

Question from Ms. Diah Rahmawati 2020.11.18 14:04:43 What is the prospect of struvite as fertilizer? Can it replace urea? Replies: Reply from Dr. Wahyu Dwi Lestari 2020.11.18 15:18:50 The function of struvite is similar with urea, so it can replace the urea.

Question from Ms. Sovia Masfuri Walidatus Sholihah 2020.11.18 13:49:05 Thank you for your explanation.. Is there no pre treatment in cow urine to get only an ammonium and phosphate compounds? i have a hypothesis pre treatment proccess will produce a better and pure struvite, is that true? if not, what is the best method to obtain the best struvite? thank you.. Replies: Reply from Dr. Wahyu Dwi Lestari 2020.11.18 15:27:48 Where is the pre treatment that you mean?

Question from Mr. Rinasa Agistya Anugrah 2020.11.18 13:10:18 How make the strutive feltilizer to become granule form (like balls), are there any added material to make cohesive it so that it becomes granule form? Replies: Reply from Dr. Wahyu Dwi Lestari 2020.11.18 15:34:58 Yes, its need next process to make granules form, Reply from Mr. Rinasa Agistya Anugrah 2020.11.18 16:26:26 Could you explain me how to make the granules? Because the information I need, I will make the granules for solid organic fertilizer (compost), make it to granules form, does the method can do it?

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