Evaluation of Different Wastewater Treatment Processes and Development of a Modified Attached Growth Bioreactor as a Decentralized Approach for Small Communities

Table 4

The average waste sludge characteristics of different aerobic treatment systems.

Parameters	CASP	MBBR	PBBR
SS (mg/L)	5080±286	3240±216	2568±128
VSS (mg/L)	3556±234	1450±112	1130±82
SVI (g/mL)	138±18	76±14	62±10
Particle size (μm)	40–550	25–130	5–50

The values represent the mean of five replicates ± standard error (SE).