“…The parameters of them are included pH, alkalinity, TSS, BOD5, COD, N-NH4 + , N-NO3 -, PO4 3-, MLSS, MLVSS and SV30. Process sampling and analyzing were carried out according to the standards via SMEWW and Vietnamese national technical regulations[15,16].The experiments' results have been collected and compared with corresponding values in technical standards, environmental engineers' handbooks[1,2,6] and related research results[5,10,[12][13][17][18][19].…”