Effect of continuous crystallizer performance on struvite crystals produced in reaction crystallization from solutions containing phosphate(V) and ZINC(II) IONS

N. Hutnik; B. Wierzbowska; K. Piotrowski; A. Matynia

doi:10.1590/0104-6632.20160332s00003385

Effect of continuous crystallizer performance on struvite crystals produced in reaction crystallization from solutions containing phosphate(V) and ZINC(II) IONS

N. Hutnik
, B. Wierzbowska
, K. Piotrowski
, A. Matynia

Department of Chemical Engineering and Process Design (RCH/RCH3)

Wrocław University of Science and Technology

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

Continuous reaction crystallization of struvite from aqueous solutions containing phosphate(V) (1.0 mass %) and zinc(II) ions (from 0.1 to 2.0 mg kg-¹) in a continuous DT MSMPR crystallizer was investigated. The influence of pH (9-11) and mean residence time (900-3600 s) on the product characteristics and its chemical composition was tested. Struvite crystals of mean size 22-41 um were produced. An increase in Zn²⁺ concentration decreased the mean crystal size and homogeneity. An elevation of the pH also decreased the struvite crystal size. Augmenting the mean residence time influenced product quality advantageously. Coexistence of struvite and Zn(OH)₂ in the product was confirmed analytically.

Original language	English
Pages (from-to)	307-317
Number of pages	11
Journal	Brazilian Journal of Chemical Engineering
Volume	33
Issue number	2
DOIs	https://doi.org/10.1590/0104-6632.20160332s00003385
Publication status	Published - 1 Apr 2016

Keywords

Continuous reaction crystallization
Crystal product quality
Phosphate(V) ions
Phosphorus recycling
Struvite
Zinc(II) ions

ASJC Scopus subject areas

General Chemical Engineering

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10.1590/0104-6632.20160332s00003385

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title = "Effect of continuous crystallizer performance on struvite crystals produced in reaction crystallization from solutions containing phosphate(V) and ZINC(II) IONS",

abstract = "Continuous reaction crystallization of struvite from aqueous solutions containing phosphate(V) (1.0 mass \%) and zinc(II) ions (from 0.1 to 2.0 mg kg-1) in a continuous DT MSMPR crystallizer was investigated. The influence of pH (9-11) and mean residence time (900-3600 s) on the product characteristics and its chemical composition was tested. Struvite crystals of mean size 22-41 um were produced. An increase in Zn2+ concentration decreased the mean crystal size and homogeneity. An elevation of the pH also decreased the struvite crystal size. Augmenting the mean residence time influenced product quality advantageously. Coexistence of struvite and Zn(OH)2 in the product was confirmed analytically.",

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TY - JOUR

T1 - Effect of continuous crystallizer performance on struvite crystals produced in reaction crystallization from solutions containing phosphate(V) and ZINC(II) IONS

AU - Hutnik, N.

AU - Wierzbowska, B.

AU - Piotrowski, K.

AU - Matynia, A.

PY - 2016/4/1

Y1 - 2016/4/1

N2 - Continuous reaction crystallization of struvite from aqueous solutions containing phosphate(V) (1.0 mass %) and zinc(II) ions (from 0.1 to 2.0 mg kg-1) in a continuous DT MSMPR crystallizer was investigated. The influence of pH (9-11) and mean residence time (900-3600 s) on the product characteristics and its chemical composition was tested. Struvite crystals of mean size 22-41 um were produced. An increase in Zn2+ concentration decreased the mean crystal size and homogeneity. An elevation of the pH also decreased the struvite crystal size. Augmenting the mean residence time influenced product quality advantageously. Coexistence of struvite and Zn(OH)2 in the product was confirmed analytically.

AB - Continuous reaction crystallization of struvite from aqueous solutions containing phosphate(V) (1.0 mass %) and zinc(II) ions (from 0.1 to 2.0 mg kg-1) in a continuous DT MSMPR crystallizer was investigated. The influence of pH (9-11) and mean residence time (900-3600 s) on the product characteristics and its chemical composition was tested. Struvite crystals of mean size 22-41 um were produced. An increase in Zn2+ concentration decreased the mean crystal size and homogeneity. An elevation of the pH also decreased the struvite crystal size. Augmenting the mean residence time influenced product quality advantageously. Coexistence of struvite and Zn(OH)2 in the product was confirmed analytically.

KW - Continuous reaction crystallization

KW - Crystal product quality

KW - Phosphate(V) ions

KW - Phosphorus recycling

KW - Struvite

KW - Zinc(II) ions

UR - https://www.scopus.com/pages/publications/84982797272

U2 - 10.1590/0104-6632.20160332s00003385

DO - 10.1590/0104-6632.20160332s00003385

M3 - Article

AN - SCOPUS:84982797272

SN - 0104-6632

VL - 33

SP - 307

EP - 317

JO - Brazilian Journal of Chemical Engineering

JF - Brazilian Journal of Chemical Engineering

IS - 2

ER -

Effect of continuous crystallizer performance on struvite crystals produced in reaction crystallization from solutions containing phosphate(V) and ZINC(II) IONS

Abstract

Keywords

ASJC Scopus subject areas

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