Article Per Year (5 Year)
p-Index From 2019 - 2024
0.23
P-Index
This Author published in this journals
All Journal Jurnal Sains Materi Indonesia Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Jurnal Zeolit Indonesia
Saryati Saryati
Technology Center for Nuclear Industrial Material, National Nuclear Energy Agency (BATAN), Jakarta
Education Materials Science & Nanotechnology

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
HEAVY METAL REMOVAL AT SOLUTION WITH NATURAL ZEOLITE Saryati, Saryati; Supardi, Supardi; Suminta, Supandi; S., Rohmad
Jurnal Zeolit Indonesia Vol 9, No 1 (2010)
Publisher : Jurnal Zeolit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (116.254 KB)

Abstract

This research studied the effect of chemical activation processes of natural zeolite to heavy metal removing efficiency (%) and chemical composition of natural zeolite. The solutions 0,5M of HCl,NH4OH, KOH and NaOH was used as an activator. Heavy metal solutions (Cu, Cd, Pb, Zn, Fe and Mn) of 50 ppm was used as sample. Chemical composition of zeolite was viewed semi-quantitatively using a SEM EDX. The result indicate that Si/Al ratio was decreased because alkali activity and increased because the acid activity. The efficiency of zeolite without chemical activation on disposal heavy metals in water reached above 80% for Cd,Pb,Cu and Fe, 44% for Zn and 21% for Mn. Activation of natural zeolite with acid generally reduce the efficiency, except Fe and Pb, whereas activation with mineral salts and alkaline generally increase disposal heavy metal efficiency.
KARAKTERISASI ARANG PASARAN UNTUK PEMURNIAN AIR Saryati, Saryati; Sumardjo, Sumardjo; Sutisna, Sutisna; Handayani, Ari; Suprapti, Siti
Jurnal Sains Materi Indonesia Vol 3, No 1: OKTOBER 2001
Publisher : Center for Science & Technology of Advanced Materials - National Nuclear Energy Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1510.172 KB) | DOI: 10.17146/jusami.2001.3.1.5251

Abstract

KARAKTERISASI ARANG PASARAN UNTUK PEMURNIAN AIR. Dalam rangka pembuatan bahan pemumian air minum dari komposit arang-zeolit, telah dipelajari karakterisasi arang berdasarkan profil porositas arang dan daya serap arang Untuk keperluan ini telah digunakan tiga macam arang yang ada di pasaran, yaitu arang dari tempurung kelapa, arang dari kayu dan arang aktif. Profil porositas arang dipelajari dengan mikroskop elektron SEM-EDX dan untuk daya serap arang dipelajari dengan sampel air simulasi yang mengandung beberapa ion metal dengan konsentrasi sepuluh kali lebih besar dari pada konsentrasi maksimum ion yang diperbolehkan dalam air minum. Dari analisis mikroskopi permukaan butiran diketahui bahwa arang aktif mempunyai pori-pori yang lebih banyak dibandingkan dengan arang yang tidak aktif, sementara arang kayu mempunyai pori-pori yang lebih teratur dan pada arang tempurung kelapa. Daya serap arang cenderung dipengaruhi oleh pH larutan, tetapi pengaruh tersebut tidak berbanding lurus. Daya serap ketiga arang yang dipelajari hampir sama, untuk ion-ion Al3+, Cr3+, Ag1+, dan Pb2+ cukup besar (> 60%), untuk ion- ion Mn2+, Fe3+, Se4+, Cd2+, dan Ba2+ berkisar 20% - 60% dan untuk ion ion Mg2+, Na1+, Ca2+, dan Zn2+ kurang dari 20%. Pada umumnya daya serap arang kayu dan arang tempurung kelapa lebih kecil dalam larutan pH 4 dibandingkan dalam larutan pH 5-7.
AN ANALYSIS OF GRAMMATICAL ERRORS MADE BY THE SECOND GRADE STUDENTS OF SMAN 6 KUNDUR KABUPATEN KARIMUN KEPULAUAN RIAU IN WRITING RECOUNT TEXTS Saryati, Saryati; Azhar, Fadly; Aruan, Rumiri
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 7, No 2 (2020): EDISI 2 JULI-DESEMBER 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstract: This research is aimed to identify both types of grammatical errors and dominant errors made by the second grade students of SMAN 6 Kundur Kabupaten Karimun Kepulauan Riau in writing recount texts. The population as well as the sample (Total Sampling) of this research was the second grade students of SMAN 6 Kundur Kabupaten Karimun Kepulauan Riau. The research findings revealed that all types of grammatical errors and error of formation was the most dominant with 195 errors (54.92%); then, followed by error of omission with 93 errors (26.20%), and error of addition and ordering were below 10%. Error of addition with 34 errors (9.60%) and error of ordering with 33 errors (9.30%). Therefore, it can be concluded that the second grade students of SMAN 6 Kundur Kabupaten Karimun Kepulauan Riau committed the errors because of the influence of their mother tongue, the way of thinking, and generalization of the rule of the target language.Keywords: Error Analysis, Omission, Addition, Formation, ordering.
Co-Authors Ari Handayani Fadly Azhar Rohmad S., Rohmad Rumiri Aruan Siti Suprapti Sumardjo Sumardjo Supandi Suminta Supardi Supardi Sutisna Sutisna