MORPHOLOGY AND ELEMENTAL COMPOSITION OF PRODUCT OBTAINED FROM STRUVITE FLUIDIZED BED REACTOR
Journal Title: Civil and Environmental Engineering Reports - Year 2018, Vol 2, Issue 28
Abstract
Phosphorus scarcity is no longer a distant future, therefore the idea of phosphoru recovery is currently widely adopted and developed. Technologies based on the struvite precipitation are consider to address the future P challenges in the optimum way. This paper presents the results of the pilot scale implementation of fluidized bed reactor for struvite precipitation at the wastewater treatment plant. The test was carried out to assess the applicability of the technology in terms of robustness and final product quality, operating at low pH level (7,5-7,8). Obtained struvite pellets were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) with an energy dispersive spectrometer (EDS). The presence of foreign ions and particulate impurities in the feed source, affected the uniform growth of the crystal structure, resulting in highly porous structure of the pellets. Despite the varying physiochemical conditions, typical for wastewater, obtained pellets were determined with 95% struvite purity.<br/><br/>
Authors and Affiliations
Franciszek BYDAŁEK, Anna KULA, Jacek MĄKINIA
Keywords
Related Articles
- EP ID EP386992
- DOI 10.2478/ceer-2018-0025
- Views 44
- Downloads 0
MORPHOLOGY AND ELEMENTAL COMPOSITION OF PRODUCT OBTAINED FROM STRUVITE FLUIDIZED BED REACTOR
Phosphorus scarcity is no longer a distant future, therefore the idea of phosphoru recovery is currently widely adopted and developed. Technologies based on the struvite precipitation are consider to address the future P...
INVESTIGATION ON LOAD CAPACITY OF STEEL CONCRETE COMPOSITE COLUMNS SRC REINFORCED BY IPE
In this study, a column with section IPE and different lengths, completely embedded in concrete, is modelled by finite element software ABAQUS. Columns under different biaxial loading were used and graphs of axial force-...
TESTS OF A REINFORCED CONCRETE FRAME BEAM SUBJECTED TO SEISMIC-TYPE LOADING
The experimental results from reversed cyclic loading tests on twelve exterior reinforced concrete beam-column joints are presented. The primary variables were the ratio of positive to negative reinforcement and the stir...
COMPOSTING AND FERMENTATION OF BIOWASTE - ADVANTAGES AND DISADVANTAGES OF PROCESSES
In 2016, in EU Member States (EU), only less than half of the biowaste produced, i.e. around 40 million tonnes, was used to produce compost and, to some extent, biogas. Most of it was still incinerated or stored together...
THE PROBLEM OF ADAPTING EXISTING RESIDENTIAL BUILDINGS IN THE COUNTRY TO THE REQUIREMENTS OF ECOLOGY
The article presents the results of direct research on residential buildings and their modernization in selected ecological farms of the Mazovia region. The research area covered two poviats (counties) in the Mazowieckie...