?url_ver=Z39.88-2004&rft_id=2114181028&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PERUBAHAN+KAPASITAS+DAN+ENERGI+JERAP+TANAH+%0D%0ATERHADAP+Cu+DAN+Zn+PADA+TANAH+TERCEMAR+LOGAM+BERAT%0D%0ADIPERLAKUKAN+DENGAN+BIOCHAR+SEKAM+PADI%0D%0A%0D%0A&rft.creator=YESI%2C+ARDINA&rft.subject=540+Kimia+dan+ilmu+yang+berhubungan&rft.subject=630+Pertanian+dan+teknologi+yang+berkaitan&rft.description=Tanah+di+desa+Sidosari%2C+Kecamatan+Natar%2C+Kabupaten+Lampung+Selatan%2C+telah+mengalami+pencemaran+terstruktur+oleh+logam+berat+Cu+dan+Zn+sejak+26+tahun+lalu+akibat+perlakuan+limbah+industri+sendok+logam+dari+PT+Star+Metal+Ware+Industry%2C+Jakarta.+Logam+berat+merupakan+polutan+berbahaya+dalam+tanah+yang+apabila+terserap+oleh+akar+tanaman+akan+memasuki+rantai+makanan+yang+membahayakan+makhluk+hidup.+Penambahan+biochar+sekam+padi+sebagai+bahan+pembenah+tanah+diharapkan+dapat+mengurangi+ketersediaan+logam+berat+dalam+tanah.+Sekam+padi+menjadi+salah+satu+limbah+pertanian+yang+melimpah+dengan+tingginya+rasio+C%2FN+sehingga+lebih+cocok+dijadikan+sebagai+arang+(biochar)+daripada+kompos.+Sekam+padi+mengandung+senyawa+lignin+yang+dapat+meningkatkan+luas+permukaan+biochar+untuk+menjerap+kation+logam+berat.+Oleh+karena+itu%2C+penelitian+ini+bertujuan+memanfaatkan+biochar+sekam+padi+untuk+meningkatkan+kemampuan+kompleks+jerapan+tanah+terkait+jumlah+maksimum+logam+berat+yang+dapat+ditahan+(b)+dan+konstanta+energi+ikatan+(K)+antara+logam+berat+dengan+koloid+tanah.+++%0D%0APenelitian+ini+disusun+secara+faktorial+dengan+2+faktor+dan+3+ulangan+dalam+Rancangan+Acak+Lengkap+(RAL).+Faktor+pertama+adalah+tanah+dengan+riwayat+perlakuan+limbah+industri+(S)+yang+terdiri+dari+tanah+tidak+tercemar+logam+berat+0+Mg+ha-1+(S0)+atau+kontrol%2C+tercemar+limbah+takaran+15+Mg+ha-1+(S1)+atau+konsentrasi+rendah%2C+dan+takaran+60+Mg+ha-1+(S2)+atau+konsentrasi+tinggi.+Faktor+kedua%2C+biochar+sekam+padi+(B)+dengan+dosis+0+(B0)%3B+5+(B1)%3B+dan+10+Mg+ha-1+(B2).+Perubahan+nilai+b+dan+K+tanah+akibat+pengaplikasian+biochar+sekam+padi+dihitung+dengan+menggunakan+persamaan+Isotermal+Langmuir+dan+pengukuran+konsentrasi+logam+dengan+flame+AAS.+Sementara+itu%2C+peubah+pendukung+lainnya+seperti++%0D%0Aketersediaan+logam+berat+Cu+dan+Zn%2C+pH+tanah%2C+KTK+tanah%2C+kandungan+C-organik+tanah%2C+dan+kadar+liat+dalam+tanah+secara+berturut-turut+ditentukan+menggunakan+metode+pengekstrak+1+N+HNO3+(asam+nitrat)%2C+metode+H2O+(1%3A2)%2C+metode+NH4OAc+1+N+pH+7%2C+metode+Walkey+and+Black%2C+dan+metode+hidrometer.+%0D%0AHasil+penelitian+menunjukkan+bahwa+tanah+26+tahun+pascaperlakuan+limbah+industri+memiliki+ketersediaan+logam+Cu+secara+berturut-turut+dari+yang+tertinggi+adalah+S0+%3E+S2+%3E+S1.+Tanah+S2+menunjukkan+pengaruh+konsentrasi+Cu+yang+signifikan+secara+berturut+turut+pada+pengaplikasian+dosis+biochar+sekam+padi+B1+%3E+B2+%3E+B0+dalam+meningkatkan+konsentrasi+Cu.+Penambahan+biochar+sekam+padi+dengan+dosis+5+Mg+ha-1+(B1)+berpengaruh+nyata+dalam+meningkatkan+nilai+b+pada+tanah+S0+dan+S1+dan+tidak+berpengaruh+pada+tanah+S2.+Sementara+itu%2C+biochar+sekam+padi+dosis+5+Mg+ha-1+menurunkan+nilai+K+tanah+terhadap+logam+berat+Cu+pada+tanah+S0.+Adsorpsi+logam+berat+Zn+tidak+dapat+digambarkan+dengan+baik+menggunakan+persamaan+Isotermal+Langmuir.+Kapasitas+adsorpi+maksimum+logam+Cu+(bCu)+memiliki+korelasi+yang+nyata+dan+positif+dengan+kadar+liat+tanah.+Konstanta+energi+adsorpsi+logam+Cu+(KCu)+berkorelasi+positif+dengan+ketersediaan+Cu%2C+pH%2C+C-organik%2C+dan+KTK%2C+sedangkan+dengan+kadar+liat+tanah+berkorelasi+negatif.%0D%0A%0D%0A%0D%0AKata+kunci%3A+Biochar%2C+Isotermal+Langmuir%2C+Kapasitas+Adsorpsi+Maksimum+(b)%2C+Konstanta+Energi+Adsorpsi+(K)%2C+Sekam+Padi%2C+Seng%2C+Tembaga.%0D%0A%0D%0A%0D%0AThe+land+in+Sidosari%2C+Natar+District%2C+South+Lampung+Regency%2C+had+been+with+heavy+metals+Cu+and+Zn+since+26+years+ago+due+to+intentional+polluted+with+waste+of+metal+spoon+industry+from+PT+Star+Metal+Ware+Industry%2C+Jakarta.+Heavy+metals+are+hazardous+pollutants+in+the+soils+which%2C+when+absorbed+by+plant+roots%2C+may+enter+a+food+chain+that+is+harmful+to+living+things.+The+addition+of+rice+husk+biochar+as+a+soil+conditioner+is+expected+to+reduce+the+availability+of+heavy+metals+in+soils.+Rice+husk+is+one+of+the+abundant+agricultural+wastes+with+a+high+C%2FN+ratio%2C+making+them+more+suitable+as+charcoal+(biochar)+than+compost.+Rice+husk+contains+lignin+compounds+that+can+increase+the+surface+area+of+biochar+to+adsorb+heavy+metal+cations.+Therefore%2C+this+research+was+to+utilize+rice+husk+biochar+to+study+the+ability+of+the+soil+adsorption+complex+related+to+the+maximum+amount+of+heavy+metals+that+can+be+retained+(b)+and+the+strength+of+the+bond+energy+constant+(K)+between+heavy+metals+and+soil+colloids.%0D%0AThis+study+was+arranged+factorially+with+2+factors+and+3+replications+in+a+Completely+Randomized+Design+(CRD).+The+first+factor+was+soil+with+a+history+of+industrial+waste+treatment+(S)+consisting+of+soil+untreated+with+heavy+metals+0+Mg+ha-1+(S0)+or+control%2C+treated+with+waste+at+a+dose+of+15+Mg+ha-1+(S1)+or+low+heavy+metals%2C+and+a+dose+of+60+Mg+ha-1+(S2)+or+high+heavy+metals.+The+second+factor%2C+rice+husk+biochar+(B)+with+a+dose+of+0+(B0)%3B+5+(B1)%3B++and+10+Mg+ha-1+(B2).+Changes+in+soil+b+and+K+values+due+to+the+application+of+rice+husk+biochar+were+calculated+using+the+langmuir+isothermal+and+measurement+of+metal++%0D%0Aconcentration+with+flame+AAS.+Meanwhile%2C+other+supporting+variables+such+as+the+availability+of+heavy+metals+Cu+and+Zn%2C+soil+pH%2C+soil+CEC%2C+soil+organic+C+content%2C+and+clay+content+were+determinated+using+the+N+HNO3+(nitric+acid)+method%2C+the+H2O+(1%3A2)%2C+the+NH4OAc+1+N+pH+7+method%2C+the+Walkey+and+Black+method%2C+and+the+hydrometer+method.%0D%0AThe+results+of+the+study+indicated+that+the+soil+26+years+after+industrial+waste+treatment+should+a+Cu+metal+availability+from+the+highest+S2+%3E+S1+%3E+S0.+Soil+S2+showed+a+significant+effect+of+Cu+concentration+consecutively+on+the+application+of+rice+husk+biochar+doses+B2+%3E+B1+%3E+B0.+The+addition+of+rice+husk+biochar+with+a+dose+of+5+Mg+ha-1+(B1)+had+a+significant+effect+on+increasing+the+b+value+on+soil+S0+and+S1+and+had+no+effect+on+soil+S2.+Meanwhile%2C+rice+husk+biochar+at+a+dose+of+5+Mg+ha-1+reduced+the+soil+K+in+S0.+The+adsorption+of+Zn+could+not+be+described+well+using+the+langmuir+isotherm.+The+maximum+adsorption+capacity+of+Cu+metal+(bCu)+had+a+significant+and+positive+correlation+with+soil+clay+content.+The+Cu+adsorption+energy+constant+(KCu)+was+positively+correlated+with+the+availability+of+Cu%2C+pH%2C+C-organic%2C+and+CEC%2C+while+it+was+negatively+correlated+with+clay+content.+%0D%0A%0D%0A%0D%0AKeywords%3A+Adsorption+Energy+Constant+(K)%2C+Biochar%2C+Copper%2C+Langmuir+Isotherm%2C+Maximum+Adsorption+Capacity+(b)%2C+Rice+Husk%2C+Zinc.%0D%0A+%0D%0A&rft.publisher=FAKULTAS+PERTANIAN&rft.date=2024-12-20&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F81099%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F81099%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F81099%2F3%2FSKRIPSI%2520FULL%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++YESI%2C+ARDINA++(2024)+PERUBAHAN+KAPASITAS+DAN+ENERGI+JERAP+TANAH+TERHADAP+Cu+DAN+Zn+PADA+TANAH+TERCEMAR+LOGAM+BERAT+DIPERLAKUKAN+DENGAN+BIOCHAR+SEKAM+PADI.++FAKULTAS+PERTANIAN%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F81099%2F