The dephosphorizing effect by a series filtration, repulping (acidulation) and water washing process in WPA production is studied.
对湿法磷酸生产流程中串联再浆（酸化）水洗的降磷效果进行了实验研究。
2
The equipment described in this paper as a kind of sewage treatment device possesses the advantages of both hydrolytic acidulation and biological contact oxidation.
本设备集水解酸化和生物接触氧化两者优点于一体，是一种处理生活污水的中小型装置。
3
In the production of nitrophosphates by the mixed acid process the main components of the acidulation tail gas are nitrogen oxides, and the steam condensate from evaporation contains ammonia.