Struvite Crystallization in Fed-Batch Pilot Scale and Description of Solution Chemistry of Struvite

2007 ◽  
Vol 85 (3) ◽  
pp. 344-356 ◽  
Author(s):  
M.I. Ali
Keyword(s):  
Pilot Scale ◽  
Solution Chemistry ◽  
Fed Batch ◽  
Struvite Crystallization

Kinetic evaluation and performance of pilot-scale fed-batch aerated lagoons treating winery wastewaters

2010 ◽  
Vol 101 (10) ◽  
pp. 3452-3456 ◽  
Author(s):  
S. Montalvo ◽  
L. Guerrero ◽  
E. Rivera ◽  
R. Borja ◽  
A. Chica ◽  
...  
Keyword(s):  
Pilot Scale ◽  
Fed Batch ◽  
Kinetic Evaluation ◽  
And Performance

scholarly journals Critical conditions of struvite growth and recovery using MgO in pilot scale crystallization plant

2020 ◽  
Vol 81 (12) ◽  
pp. 2511-2521 ◽  
Author(s):  
Nari Park ◽  
Hyangyoun Chang ◽  
Yeoju Jang ◽  
Hyunman Lim ◽  
Jinhong Jung ◽  
...  
Keyword(s):  
Pilot Plant ◽  
Wastewater Treatment Plants ◽  
Weight Fraction ◽  
Dry Weight ◽  
Xrd Analysis ◽  
Pilot Scale ◽  
Critical Conditions ◽  
Side Stream ◽  
Struvite Crystallization ◽  
Ph Range

Abstract The struvite crystallization process can recover struvite crystals as a valuable slow-release fertilizer from the side stream of wastewater treatment plants (WWTPs). The purpose of this study is to demonstrate the crystal growth characteristics and determine the appropriate recovery criteria for a struvite crystallization pilot plant. A pilot plant (8.6 m3/d) was designed with a feeding system of MgO (magnesium oxide), a pH controller, and a hydrocyclone for recovering struvite; the plant was operated for 42 hours at a pH range of 8.25–8.5. The removal efficiencies for PO4-P and NH4-N were 82.5–90.7% and 13.4–22.9%, respectively. The struvite recovered from the hydrocyclone was sifted using standard sieves and analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The dry weight fraction of the precipitate in the 300–600 μm range increased gradually from 7% to 74% in 18 hours. The XRD analysis revealed that the crystalline structure of the precipitate in the 150–600 μm range indicates struvite without any peaks of MgO, Mg(OH)2, and MgCO3. This indicates that the critical conditions for recovering struvite from the side-stream of WWTPs are an operation period of 18 hours and a crystal size greater than 300 μm.

scholarly journals Oxygen control for an industrial pilot-scale fed-batch filamentous fungal fermentation

2007 ◽  
Vol 17 (7) ◽  
pp. 595-606 ◽  
Author(s):  
L. Bodizs ◽  
M. Titica ◽  
N. Faria ◽  
B. Srinivasan ◽  
D. Dochain ◽  
...  
Keyword(s):  
Pilot Scale ◽  
Fed Batch ◽  
Oxygen Control ◽  
Fungal Fermentation

Fed-batch strategies for saccharification of pilot-scale mild-acid and alkali pretreated sugarcane bagasse: Effects of solid loading and surfactant addition

2018 ◽  
Vol 119 ◽  
pp. 283-289 ◽  
Author(s):  
Absai da Conceição Gomes ◽  
Danuza Nogueira Moysés ◽  
Lidia Maria Melo Santa Anna ◽  
Aline Machado de Castro
Keyword(s):  
Sugarcane Bagasse ◽  
Pilot Scale ◽  
Solid Loading ◽  
Fed Batch ◽  
Pretreated Sugarcane Bagasse ◽  
Mild Acid

Development of a novel anoxic/oxic fed-batch membrane bioreactor (AFMBR) based on gravity-driven and partial aeration modes: A pilot scale study

2018 ◽  
Vol 270 ◽  
pp. 255-262 ◽  
Author(s):  
Dan Song ◽  
Wenjuan Zhang ◽  
Caihong Liu ◽  
Panpan Wang ◽  
Zhiqiang Sun ◽  
...  
Keyword(s):  
Membrane Bioreactor ◽  
Pilot Scale ◽  
Fed Batch ◽  
Gravity Driven

Pilot scale production of poly(3-hydroxybutyrate-co-3-hydroxy-valerate) by fed-batch culture of recombinantEscherichia coli

2002 ◽  
Vol 7 (6) ◽  
pp. 371-374 ◽  
Author(s):  
Jong-il Choi ◽  
Sang Yup Lee ◽  
Kyungsup Shin ◽  
Woo Gi Lee ◽  
Si Jae Park ◽  
...  
Keyword(s):  
Batch Culture ◽  
Pilot Scale ◽  
Scale Production ◽  
Fed Batch ◽  
Pilot Scale Production ◽  
Fed Batch Culture
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