屎尿処理用散布濾床の生物相の研究
ON THE BIOTIC COMMUNITY OF THE TRICKLING FILTER

Yasuko IWAO
1960 Nihon Seitai Gakkaishi  
The biot菫 c community ofthe stalldard trickling filter and its accessory inStal 董 at孟 ons of the Okubo Camp of National Guards was studied . The points where the sampli 皿 g was 皿 ade are shown i皿 Figs .1 − 4. The biotic . commuhities of alI po 量 nts were composed of relat 正 vely small number of species a . nd predomiriated by Iarge popu 盟 ations of few colony ・ form ' ing species ( Table 1) . The characteristic colony ・ for皿 ing organlsms may be 三 r 【 匙 portant fro皿 the stand point of pollution
more » ... point of pollution b三 〇logy . Judging from the species that apPeared , the influent water to the trickl三 ng filter is β . po 亘 ysaprobic, and fi 王 trated water is regarded as intermediate between β . polysaprobic and a − me . sosaprobic . These results are supported by the data of B . 0 . D . meas ロrement . It is noteworthy that green algae such as nUmberS at the SampHI19 POi . nts i員 terpreted aS β ・ polysaprobic . It has been thought that these species , when found in large numbers , should indicate α ・ mesosaprob 量 c or . 1eSs polluted habi − tats, but the result obtained here shows that these algae can live in mor ¢ polluted waters as well . The . ef鬘ciency of sewage purjfication of the 1960 年 5 月 19 臼 受 領 trickling filter exa 唄 且ed is not so high as can be expected . This low e 伍 ciency may be due to insu缶cient volume of sewage to be filtrated , ( The plant was origina . lly planed for more quantity of sewage
doi:10.18960/seitai.10.5_207 fatcat:5ycsada575f7binhbhogxqmmum