Microbial biomineralisation is attracting significant interest as an innovative process to recover nutrients from wastes. Nevertheless, little understood about the requirements form struvite using biological pathways in wastewater and how does this compare with conventional chemical processes. To address gap, Halobacterium salinarum, Bacillus pumilus, Brevibacterium antiquum, Myxococcus xanthus...

The mechanisms of struvite production through biomineralisation were investigated for five microorganisms (Bacillus pumilus, Brevibacterium antiquum, Myxococcus xanthus, Halobacterium salinarum and Idiomarina loihiensis). After 72–96 h incubation, the microbial strains tested increased solution pH from 7.5 to 7.7 8.4–8.7, removed ortho-phosphate (63–71%) magnesium (94–99%) by biomineralisation....

Feeding bio-P removal Alkaline fermentation and P-recovery Increasing pH in sludge fermentation increases production of fatty acids needed to feed biological Premoval. Recovery of phosphorus and nitrogen as struvite enables further process optimisation. P-recovery Germany Adapting sludge treatment to optimise struvite recovery Appropriate management of the sludge thickening process can increase...

Urine contains about 50 % of the phosphorus (P) and about 90 % of the nitrogen (N) excreted by humans and is therefore an interesting substrate for nutrient recovery. Source-separated urine can be used to precipitate struvite or, through a newly developed technology, nitrified urine fertilizer (NUF). In this study, we prepared (33)P radioisotope- and stable (15)N isotope-labeled synthetic NUF (...

Anaerobic digestion is the most widely process used for the stabilisation of. Phosphorus Precipitation in Anaerobic Digestion Process. E-Book PDF.treatment can achieve excellent phosphorus removals, however it can also influence the process of anaerobic digestion. From pdf preview for outlook 2007 free download monitoring the performance of. The pdf vi jn3 anaerobic digestion of excess sludge b...

To ensure food supply, phosphorus must be recycled, for which an appealing method is using struvite fertilizer from human excreta. One struvite from black water and another from urine were assessed for safety under Dutch regulations, and for effectiveness as P fertilizer in a maize field experiment and a literature review. Both struvites contained 12% P, 12% Mg, 6% N, and 0.5-1.5% of several mi...

We investigated the activity of curcumin against Proteus mirabilis and the struvite crystallization in relation to urinary stones formation. In order to evaluate an activity of curcumin we performed an in vitro experiment of struvite growth from artificial urine. The crystallization process was induced by Proteus mirabilis to mimic the real urinary tract infection, which usually leads to urinar...

PURPOSE To compare the clinical, metabolic, and calculi characteristics of cystine and struvite stone patients after percutaneous nephrolithotripsy (PCNL). MATERIAL AND METHODS Between January/2006-July/2013, 11 cystine stone patients were treated in our clinic. Of those, 3 were excluded due to incomplete follow-up. Eight cystine stone patients (2 with bilateral disease; 10 renal units-RU) we...