2.2. Seeding sludge and wastewater
The seeding sludge for the PA–DAF reactor was collected from
the Municipal Wastewater Treatment Plant of Xili Town, Shenzhen,
Guangdong, China, and was acclimatized for fourteen days before
experiment. The experimental domestic wastewater was prepared
in the influent tank in which raw domestic sewage, NH4 Cl, KH2 PO4