The role of iron oxidizing bacteria to the quality of leachate on acid sulphate soil
Penulis/Author
KHAIRATUN NAPISAH (1); Prof. Dr. Ir. Azwar Ma`as, M.Sc. (2); Prof. Dr. Ir. Sri Nuryani Hidayah Utami, M.P., M.Sc. (3); Wahida Annisa (4)
Tanggal/Date
8 2020
Kata Kunci/Keyword
Abstrak/Abstract
The problem encountered in acid sulphate soil isthe presence of pyrite (FeS2) which causes
soil to have highly acid reaction when the pyrite is oxidized. The decline in quality not only
occurs on the soil but also on the quality of the surrounding waters. One way to improve
the quality of the leachate is by draining it through biofilter plants in the form of purun
tikus(Eleocharis dulcis) and bulu babi (Eleocharisretroflaxa) which can absorb or neutralize
these elements. The purpose of this research was to know the inoculant influence of iron
oxidizing bacteria to leachate quality in acid sulphate soil. The research was conducted on
a pot scale in greenhouse. The research was in randomized complete block design (RCBD)
of three factors with three replications. The first factor wasinoculants, the second factor was
watermanagement, and the third onewas phytoremediationmaterial(E.dulcis andE.retroflaxa).
The results showed that the plant height in the inoculant treatment+wood charcoal was
in the range of 89.33?95.33 cm, while that in the inoculant treatment+husk charcoal was
in the range of 89.50?93.00 cm. Meanwhile, the yield of rice with bacteria oxidizing iron inoculant+wood charcoal was higher, which was at 6.77 ton.ha-1 than inoculant treatment of
oxidizing iron+husk charcoal which was only 5.95 ton.ha-1
.
