Related Experiment Video
Updated: Feb 3, 2026

Comparison of Scale in a Photosynthetic Reactor System for Algal Remediation of Wastewater
Published on: March 6, 2017
Evaluation of ammonia recovery from swine wastewater via a innovative spraying technology
Leipeng Cao1, Jingjing Wang1, Ting Zhou1
1State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China.
Abstract:
An innovative spraying system for NH4+-N removal and recovery was investigated under different pH, temperature, spraying frequency and rate by using spraying system. Results showed that NH4+-N removal efficiency and mass transfer coefficient (KLa) value in swine wastewater (SW) remarkably increased with increasing of temperature, spraying frequency and rate due to promoting the diffusion of NH3 molecules caused by increasing specific surface of SW molecule, and high shear force and temperature difference between SW and circulating heating tube. Considering the cost and discharge standard, the optimum parameters for NH4+-N removal from SW using spraying system were alkaline, 0.24 m3 h-1 of continuous spraying, and 45 °C circulating water, and the NH4+-N decreased from 591.2 to 68.9 mg L-1 (<80 mg L-1) after 8 h treatment, and this value corresponded to 88.35% removal rate. Furthermore, over 85% recovery rate for NH4+-N could be obtained through absorption of phosphoric acid.
Related Concept Videos
Preparation of Amines: Alkylation of Ammonia and Amines
Each alkylation step makes the nitrogen center more nucleophilic, which triggers successive alkylations until a quaternary ammonium salt is formed. Considering...
Hybridoma Technology
Hybridoma Selection
Commonly used fusion techniques — electroporation,...
Muscle Recovery and Fatigue
Reduction of Alkynes to trans-Alkenes: Sodium in Liquid Ammonia
When dissolved in liquid ammonia, an alkali metal, such as sodium,...
Health Information Technology and Healthcare Information System
Health Information Technology, commonly called HIT, integrates advanced information systems and technology in healthcare settings. Its primary functions include:
Self-Evaluation: Self-Enhancement and Self-Verification

