DAFTAR ISI

Halaman Judul .………………………………………………………………............…..i

Lembar Pengesahan ……………………………………………………………………….….ii

Kata Pengantar ……………………………………………………………………….....iii

Daftar Isi ……………………………………………………………………….….v

Daftar Gambar ……………………………………………………………………........vii

Intisari ………………………………………………………………………...viii

BAB I. PENDAHULUAN ………………………………………………………………….1

I.1. Sejarah Singkat Perusahaan ……………………………………………….....1

I.2. Visi dan Misi Perusahaan ………………………………………….............1

I.3. Struktur Organisasi Perusahaan ………………………………………………….2

I.4. Ruang Lingkup Kerja Praktek ………………………………………………….2

I.5. Profil PT. ASIAN TEC INDONESIA ………………………………………….2

BAB II. PROSES PENGOLAHAN AIR ………………………………………………….4

II.1. Bahan Baku Proses Pengolahan Air ………………………………………….4

II.2. Air Tanah

.....................................................................................................4

II.3. Karakteristik dan Standar Air ……............…………………………………….5

II.4. Macam-macam Proses Pengolahan Air .................................................................8

II.4.1. Gravity System (pengendapan) ………………………………….8

II.4.1.1. Clarifier ………………………………………………….8

II.4.1.2. Sedimentasi ………………………………………………....10

II.4.1.3. Gravity Sand Filter ………………………………………....12

II.4.2. Normal Filtration …………………………………...............…….13

II.4.2.1. Sand Filter …………………………………………………14

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II.4.2.2. Dual Media Filter …………………………………………14

II.4.2.3. Disc Filter …………………………………………………15

II.4.3. Cross Filtration …………………………………………………16

II.4.3.1. Ultrafiltration (UF) …………………………………………16

II.4.3.2. Nano Filtration …………………………………………19

II.4.3.3. Reverse Osmosis …………………………………………21

II.4.4. Ion Exchanger …………………………………………………………22

II.4.4.1. Mix Bed …………………………………………………23

BAB III. TUGAS KHUSUS …………………………………………………………………28

III.1. Judul Tugas Khusus …………………………………………………………28

III.2. Latar Belakang ........................................................................................28

III.3. Proses BWRO .………………………………………...………………29

III.4. Maksud dan Tujuan ………………………………………………............…29

III.5. Batasan Masalah ........................................................................................29

BAB III.6. METODOLOGI …………………………………………………………………30

III.6.1. Pengumpulan Data …………………………………………………………30

III.6.1.1. Pengumpulan Data Primer …………………………………………30

III.6.1.2. Pengumpulan Data Sekunder …………………………………30

III.6.2. Pengolahan data …………………………………………………………30

BAB III.7. HASIL DAN PEMBAHASAN ………………....………………………………34

III.7.1. Pembahasan …………………………………………………………………34

BAB IV. PENUTUP ....................................................................................................35

IV.1. Kesimpulan ....................................................................................................35

DAFTAR PUSTAKA .....................................................................................................ix

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DAFTAR GAMBAR

Gambar 1.Peta client PT ASIAN TEC INDOESIA …………………………………………..3

Gambar 2. Clarifier …………………………………………………………………………..9

Gambar 3.Bagian dalam Clarifier …………………………………………………………..9

Gambar 4.Sedimentasi ……………………………………………………………….....11

Gambar 5.Sedimentasi ……………………………………………………………….....11

Gambar 6.Slow Sand Filter ………………………………………………………………….14

Gambar 7.Dual Media Filter ………………………………………………………………….15

Gambar 8.Kepingan-kepingan Disc Filter ………………………………………………….15

Gambar 9. Cara Kerja Disc Filter ………………………………………………………….16

Gambar 10.Ultrafiltration ………………………………………………………………….17

Gambar 11.Ultrafiltrtion bagian dalam ………………………………………………….17

Gambar 12.Ultrafiltration bagian luar ....……………………………………............….18

Gambar 13. Nano Filtration ………………………………………………………………….21

Gambar 14.Pengopersian Alat Penukar Ion ………………………………………………….24

Gambar 15. Diagram Proses .....................................................................................................27

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