Environ Technol. 2014 Mar-Apr;35(5-8):637-44. doi: 10.1080/09593330.2013.840337.
Performance of the laboratory-scale recycled rubber particles (RRP) biofilter was compared to a conventional gravel system and a peat biofilter for treatment of septic tank effluent. During the study, the RRP biofilter provided similar or better performance than other systems in terms of organic removal and hydraulic capacity. After the start-up period, RRP biofilter achieved removal efficiencies for BOD5, total suspended solids (TSS), ammonia nitrogen of 96%, 93%, and 90%, respectively, over the range of hydraulic loading rates of 57-204 L/m2/d. On the other hand, the peat biofilter failed hydraulically and the gravel system showed high TSS concentrations in the effluent. RRP provided high surface area and sufficient time for biological treatment. In addition, RRP was observed to provide ammonia adsorption capacity. The results showed that RRP has the potential to be used as substitutes for natural aggregate such as gravel in septic system drainfields. The RRP biofilter can be used as alternative septic systems for the sites where an existing septic system has failed or site conditions, such as high groundwater table or small lot size, are not suitable for the installation of conventional septic systems.
实验室规模的再生橡胶颗粒（RRP）生物滤池的性能与传统砾石系统和泥炭生物滤池进行了比较，用于处理化粪池废水。在研究过程中，RRP 生物滤池在有机去除和水力容量方面的性能与其他系统相似或更好。在启动阶段之后，RRP 生物滤池在水力负荷率为 57-204 L/m2/d 的范围内，分别实现了 BOD5、总悬浮固体（TSS）和氨氮去除率 96%、93%和 90%。另一方面，泥炭生物滤池出现水力故障，砾石系统的出水 TSS 浓度较高。RRP 提供了高表面积和足够的时间进行生物处理。此外，RRP 被观察到具有氨吸附能力。结果表明，RRP 有可能替代砾石等天然骨料，用于化粪池排水场。RRP 生物滤池可以替代现有的化粪池系统出现故障的地方，或者当地的情况，如高地下水位或小地块尺寸，不适合安装传统的化粪池系统。
