Crystallization techniques in wastewater treatment: An overview of applications

Lu, Haijiao; Wang, Jingkang; Wang, Ting; Wang, Na; Bao, Ying; Hao, Hongxun

doi:10.1016/j.chemosphere.2017.01.070

Cited by 145 publications

(63 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Antisolvent crystallization plays an important role in various fields as an effective separation and crystal manufacturing technology (e.g., inorganics, pharmaceuticals, food, and thermosensitive substances). Because it can be operated under ambient temperature and atmospheric pressure, antisolvent crystallization is environment friendly and low energy consumption .…”

Section: Introductionmentioning

confidence: 99%

A novel hollow fiber membrane‐assisted antisolvent crystallization for enhanced mass transfer process control

et al. 2018

View full text Add to dashboard Cite

Herein, a novel hollow fiber membrane‐assisted antisolvent crystallization (MAAC) was proposed to enhance the mass transfer control over the antisolvent crystallization. A polyethersulfone membrane module was introduced as the key device for antisolvent transfer and solution mixing. An antisolvent liquid film layer was formed on the membrane surface and mixed with the solution. The liquid film also prevented the membrane from directly contacting with crystallization solution. By controlling both the shell side flow velocity and the antisolvent transfer, the antisolvent permeation rate achieved sensitive, stable, and accurate control during long‐term and repeated utilization. The interfacial mass transfer rate of MAAC was 0.66 mg cm−2 s−1, which was only 1/50 that of conventional droplet antisolvent crystallization. MAAC also provided crystal products with better morphologies and narrower size distributions than the conventional process. The stable performances of MAAC in terms of its accurate antisolvent mass transfer and antifouling capabilities were also highlighted. © 2018 American Institute of Chemical Engineers AIChE J, 65: 734–744, 2019

show abstract

Section: Introductionmentioning

confidence: 99%

A novel hollow fiber membrane‐assisted antisolvent crystallization for enhanced mass transfer process control

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The challenge in evaporation crystallization technologies is the energy consumption: the lower the energy consumption, the better the technology. To minimize the energy demand in evaporation crystallization, a number of technological breakthroughs have been made in the past few decades [2].…”

Section: Introductionmentioning

confidence: 99%

Simulation and Empirical Studies of Solvent Evaporation Rates in Vacuum Evaporation Crystallization

Said

Louhi-Kultanen

2019

Chem Eng & Technol

View full text Add to dashboard Cite

Simulation results for continuous vacuum evaporation crystallization obtained by Aspen Plus and experimental results for semi-batch vacuum evaporation crystallization are presented. In the crystallization experiments, the fixed heat duty was used to compare the water evaporation rates and crystal properties obtained at different pressures. The solution selected was aqueous glycine. It has the ability to form a number of different crystalline polymorphs, which allows it to exhibit a variety of different physical properties while maintaining its chemical properties. X-ray diffraction results demonstrated that mainly the g-crystal form is produced under the conditions applied in vacuum evaporation crystallization.

show abstract

“…The evaporation crystallization and cooling crystallization are commonly used in the crystallization separation industry. The evaporation crystallization is a conventional measure used in dealing with the salt water containing various ions such as Cl − , SO 4 2− , Na + , and Ca 2+ , whereas cooling crystallization is often used to collect sodium sulfate crystals from high‐concentration brackish water . This technique has been widely used for Na 2 SO 4 and NaCl recovery from seawater and lake brine .…”

Section: Introductionmentioning

confidence: 99%

“…The evaporation crystallization is a conventional measure used in dealing with the salt water containing various ions such as Cl − , SO 4 2− , Na + , and Ca 2+ , whereas cooling crystallization is often used to collect sodium sulfate crystals from high-concentration brackish water. 20 This technique has been widely used for Na 2 SO 4 and NaCl recovery from seawater and lake brine. 21 However, it is an energy-consuming technique that requires large amounts of steam during operation.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic analysis of a mechanical vapor recompression evaporation system coupled with crystalization for salt separation

Kang

Jin

Xiao

2018

Asia-Pacific J Chem Eng

View full text Add to dashboard Cite

Currently, the mechanical vapor recompression (MVR) system is extensively used for single salt separation, but the relevant research on mixed salt system treatment is still in initial stage. As a very common salt solution system, sodium chloride–potassium chloride–water system can be readily found in many processes. It is no doubt of great significance to separate their crystals from the mixed solution in an efficient and environmentally friendly way. Therefore, with the aid of Aspen Plus software, this study aims to design an MVR evaporation system capable of treating sodium chloride–potassium chloride–water system. Subsequently, the analysis about the start‐up schemes and some influencing factors in the steady‐state operation are carried out, so as to provide some guidance and reference for the future technical route to separate mixed salt system with low energy consumption.

show abstract

Crystallization techniques in wastewater treatment: An overview of applications

Cited by 145 publications

References 54 publications

A novel hollow fiber membrane‐assisted antisolvent crystallization for enhanced mass transfer process control

A novel hollow fiber membrane‐assisted antisolvent crystallization for enhanced mass transfer process control

Simulation and Empirical Studies of Solvent Evaporation Rates in Vacuum Evaporation Crystallization

Thermodynamic analysis of a mechanical vapor recompression evaporation system coupled with crystalization for salt separation

Contact Info

Product

Resources

About