Makalah 18 - 206

POTENSI PEIMANFMTAN LIMBAN PADAT I'AURIK KER-TAS

SEBAGAI KOMPOS, MEDIA JAbIUR, DAN b1EDIA TANAM

1'ANPA 1-ANAI-1

THE POTENTIAL USE OF SOLID WASTES OF PAPER FACI'ORY AS COMPOST, MUSHROOM MEDlA,

AND SOILLESS MEDIA

Didiek H. Goenadi, R. Erwiyono, H. Widiastuti, 2 )

ABSTRACT

PT Kertas Leces, a paper factory using bagasse as r a w material, faces many problems i n waste management, espe- c i a l l y those o f huqe volume and variety i n solld wastes. The solid wastes discharged consist o f sludge, lime m u d , pi th, and biosludge. A ser ies o f experiments has been conducted t o determine possible al ternat ives for agricul- ture uses o f those wastes based on i t s respective proper- t i e s . The experiments included ( 1 ) composting o f sludge, biosludge, and pith, ( 2 ) constructing media for edible n~ushroom, and (3) the use o f sludge, pi th, and biosludge as com onents o f constructed so i l l e s s media.

~ g e resu l t s showed that sludge, P th , and/or bios-

ludqe i n respective or combination w i t certain proportion showed

a R romising potential as compost raw materials. A simple t e c nique i n composting using c a t t l e dung as decom- poser and turning over t o provide good aeration has been established. Good qual i ty o f compost resulted was con- firmed by superior,performance o f cocoa seedlings. A mix- ture o f sludge, plth,, and llme mud can be used as media for edibLe mushroom, 1 .e . V. volvacea and P . ostreatus. Employing a simple composting technique, those mushrooms grown on the constructed media give d s u f f i c i e n t l y high y ie ld . As soil lesS media, pith, biosludge, And/or sludqe revealed ffood ~ h ~ s i c a l ~ r o ~ e r t i e s . Hbwever, the low nutr i- ent contgnts *o ' f these'materials need t o be overcome by

certain amount o f f e r t i l i z e r . The media provided a growing r e l i a l e environment for seedlings o f selected

industrial fores trees , i . e . a lb iz ia , mahagoni, and leu- caena .

Oisahnpaikan pada Seminar Bioteknologi Perkebunan dam Lokekarya BIOpoLimer untuk lndusrr i PAU Biotcknalogi iP0, Bogol. 10 - 11 Desrlt*el. 1991.

2 , Pusat PeneL i t i a n Perkebunan Bogor