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INDONESIA
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan
Published by Universitas Diponegoro
ISSN : 1907817X     EISSN : 25500023     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences
Arjuna Subject : -
Articles 11 Documents
 1   2 
Search results for , issue "Vol 16, No 3 (2019): November 2019" : 11 Documents clear
Pemanfaatan Komposit Biosorben Tanah Liat dan Arang Bambu dalam Mengurangi Kandungan Zat Warna pada Limbah Cair Industri Batik Tamyiz, Muchammad; Hidayah, Natasya Nur; Salsabella, Aulianita; Maulidiyah, Takrimatul
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 3 (2019): November 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (384 KB) | DOI: 10.14710/presipitasi.v16i3.152-159

Abstract

The batik industry in Indonesia is one of the small and medium business sectors (SMEs) which is a source of work for some people. The batik industry produces various kinds of liquid waste, one of which is dyes including remazol dyes. In this research, clay and bamboo charcoal which are activated by HCl 1 M were made into a composite biosorbent with a ratio of clay and bamboo charcoal (80%: 20%). In this study, two variables are used, namely dose and contact time variation. The results of removal efficiency for variable adsorbent doses and contact time respectively were 30.00% and 31.33%. FTIR spectrum analysis shows wave numbers 1338.64 and 1309.71 cm-1 which is the C-H bending region. The peak at wave number 1539.25 cm-1 with strong and tapered absorption is identified as aliphatic C-C strains which are functional groups of activated charcoal. The spectrum gives a clay-charcoal composite specification when the absorption peak at wave number 3462.34 cm-1 there is an interaction between O-H in clay and O-H in charcoal, causing an increase in absorption intensity. The use of clay and bamboo charcoal biosorbent can reduce levels of dyes in batik industry liquid waste.
Potensi dan Pengaruh Batang Pisang Sebagai Media Filter Pada Pengolahan Air Limbah Pencucian Kendaraan Bermotor Kusumawardani, Yustika; Subekti, Sri; Soehartono, Soehartono
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 3 (2019): November 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (304.716 KB) | DOI: 10.14710/presipitasi.v16i3.196-204

Abstract

Wastewater vehicle washing that discharged directly into water bodies can increase pollution levels. Wastewater treatment of small-scale vehicle washing businesses must be efficient, no need large areas, easy to operate and economical. The alternative technology is using simple wastewater filtration system. Banana stems can be used for filter media. Previous studies mention banana stems have cellulose content and have high hygroscopic ability. High cellulose content allows the potential to be used as an absorbent media. Hygroscopic properties are useful for absorbing harmful inorganic chemicals. The study was conducted by making a filtration reactor using banana stem filter media with a variation of residence time and filter media thickness. Sample testing by analyzing COD, TSS and Detergent parameters. The test results significant decrease in TSS and detergent parameters. The highest percentage decrease in TSS reached 91% and detergent 96%. COD decreased during the filtration treatment directly, but after that increased with the length of duration. This is due to biological influence and the high percentage of organic matter and biomass of banana stems. It can be concluded that the banana stem potential as a filter media for direct wastewater treatment and effective in reducing TSS and detergents for washing vehicles wastewater. 
Identifikasi Aliran Sampah di Kota Semarang Melalui Pengelolaan Sampah Berbasis Masyarakat Ramadan, Bimastyaji Surya; Fauziyah, Fita; Budihardjo, Mochamad Arief; Syafrudin, Syafrudin
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 3 (2019): November 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (650.451 KB) | DOI: 10.14710/presipitasi.v16i3.117-125

Abstract

Community-based  waste  management  is a form  of  waste  management  recommended  by  the government because  it  is  very  effective  in  creating  a  zero-waste  society.  In  Indonesia,  community-based  waste management can be realized through the development of waste banks at the neighbourhoodlevels. In 2019, the City of Semarang has 48 units of active waste banks. Waste that is managed by the wastebank is plastic, paper and metal. However, there is organic waste which is also managed by several wastebanks. The purpose of this study is to identify and analyze the flow of waste through community-basedwaste management, in this  case of the  waste  bank,  in  the  city  of  Semarang.  The  method  used  is  in-depth  surveys  and  interviews related to the waste bank management system in the city of Semarang. The results showed that the activity of the existing garbagebank was able to reduce waste in the city of Semarang by 0.07% of the total garbage generation  in  the  city  of  Semarang.  This  research  can  be  used  as  a  reference  for  developing  better community-based waste management strategies, especially in Semarang City
Evaluasi Air Buangan Domestik Sebagai Dasar Perancangan Rehabilitasi Instalasi Pengolahan Air Limbah (IPAL) Domestik Komunal Kampung Kandang, Desa Condongcatur, Yogyakarta Utami, Ayu; Nugroho, Nandra Eko; Febriyanti, Salam Via; Anom, Thamzez Nuur; Muhaimin, Ahmad
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 3 (2019): November 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (326.632 KB) | DOI: 10.14710/presipitasi.v16i3.172-179

Abstract

As population increases, domestic wastewater generated will increase as well. Domestic wastewater needs to be treated properly so as not to pollute the recipient's water body. Kampung Kandang already has a communal domestic wastewater treatment plant (WWTP) to treat domestic wastewater generated by citizens. The problem from the citizens is that the WWTP needs to be rehabilitated because the amount of sludge floating in the first biological treatment tank and still has a disturbing odor. Alternative solution for this problem is by rehabilitating WWTPs so that their functions are more optimal. The purpose of this study was to evaluate domestic wastewater in Kampung Kandang. The methods used in evaluating the wastewater i.e. analysis of primary data, calculation of standard stream evaluation and calculation of removal percentage. Communal Domestic WWTP needs to remove COD, BOD, TSS, Ammonia, and Total Coliforms parameters of 97.7%, 98.9%, 42.7%, 95.6%, and 99.9%. WWTP has already removed the TSS and ammonia. BOD, COD, and total coliform should be reduced by WWTP as much for each parameter are 25, 9%, 35%, and 95, 83%. Wastewater evaluation data can be used as a basis for the design of rehabilitation to be carried out at the Communal Domestic WWTP in Kampung Kandang.
Penerapan Biopori untuk Meningkatkan Peresapan Air Hujan di Kawasan Perumahan Samadikun, Budi Prasetyo
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 3 (2019): November 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (562.59 KB) | DOI: 10.14710/presipitasi.v16i3.126-132

Abstract

Seiring dengan meningkatnya kondisi perekonomian keluarga dan kebutuhan akan ruang di Perumahan Permata Tembalang, kavling yang pada awalnya masih memiliki lahan terbuka cukup luas secara bertahap mulai berkurang, karena penghuni sudah mulai memperluas lahan terbangun di kavling rumahnya. Pada akhirnya, tidak tersisa sedikit pun lahan terbuka untuk peresapan air hujan ke dalam tanah. Tujuan dari paper ini adalah untuk mengetahui tingkat kesadaran masyarakat terhadap arti penting lahan terbuka sebagai sarana peresapan air hujan melalui penerapan biopori. Metode penerapan biopori dilakukan dalam beberapa tahap: koordinasi, sosialisasi, pelaksanaan, dan monitoring-evaluasi. Untuk mengetahui tingkat kesadaran warga, dilakukan observasi dan wawancara kepada warga yang sudah mengikuti sosialisasi dan menerapkan biopori di kavling rumahnya. Hasil observasi dan wawancara menunujukkan warga cukup antusias dalam penerapan biopori ini, terbukti dengan respon yang sangat baik sejak tahap koordinasi sampai dengan tahap monitoring-evaluasi. Hasil akhir menunjukkan warga dapat memahami sedari dini akan arti penting lahan terbuka sebagai peresapan air hujan, sehingga dengan sadar sudah mulai tergerak dan juga terdorong untuk mengaplikasikan biopori di kavling rumahnya masing-masing.
Potensi Susu Basi menjadi Pupuk Organik dengan Penambahan Larutan Effective Microorganism 4 dan Cocopeat Triwuri, Nurlinda Ayu; Dwityaningsih, Rosita; Handayani, Murni
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 3 (2019): November 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (245.202 KB) | DOI: 10.14710/presipitasi.v16i3.180-185

Abstract

During this time, the remaining milk that has been consumed only wasted. Milk content is strongly associated with nutrients to increase crop productivity. This requires innovations in the manufacture of organic fertilizer products. The purpose of this study was to determine the best composition comparison between stale milk, EM4 solution and cocopeat in the process of making liquid and solid organic fertilizer and determine the c-organic value, Ntotal, P2O5total, K2Ototal, and pH value. Initial analysis of liquid organic fertilizer obtained pH values of 5.10, P2O5total  of 0.342% and Ntotal of 0.569% at initial control (stale milk only) and final values of 1.010% of  P2O5total, 1.113% of Ntotal and 10.480% of organic carbon in R3 ( 30: 5: 1). Initial analysis of solid organic fertilizer obtained pH values 5.26%, 2.668% P2O5total, 0.952% K2Ototal and 2.780% Ntotal at R1 (10: 5: 1) and final values obtained 1.578% P2O5total at R1 (10: 5: 1) , 2.937% Ntotal in R2 and 43.912% carbon organic in R3. This shows that stale milk with the addition of EM4 and cocopeat solutions has an effect on phosphorus and nitrogen nutrients in liquid and solid organic fertilizer.
Penggunaan Nano-bio Koagulan dari Cangkang Keong Sawah (Pila ampullacea) untuk Menurunkan COD, Kekeruhan, dan TSS Limbah Cair Industri Farmasi Hadiwidodo, Mochtar; Ainurrofiq, Mohammad Naffah; Purwono, Purwono; Oktiawan, Wiharyanto
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 3 (2019): November 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (329.265 KB) | DOI: 10.14710/presipitasi.v16i3.133-139

Abstract

Salah satu industry farmasi di Semarang, Jawa Tengah menggunakan koagulan Poly Alumunium Chloride (PAC) untuk mengolah limbah cair. Penggunaan PAC atas dasar kelayakan biaya dan efektivitas pengolahan. Apabila ditinjau dari aspek lingkungan, penggunaan koagulan sintetik dalam jumlah besar akan menimbulkan limbah lumpur yang sulit didegradasi, dan mampu mengubah tingkat keasaman air dan tanah disekitarnya, sehingga berdampak buruk bagi lingkungan. Pada penelitian ini kitosan digunakan sebagai nano bio koagulan untuk mengolah limbah cair industri farmasi. Variasi dosis nano bio koagulan dan kecepatan pengadukan dilakukan untuk mengevaluasi efisiensi penyisihan parameter Chemical Oxygen Demand (COD), kekeruhan, dan Total Suspended Solid (TSS), limbah. Nani bio koagulan dibuat dari Cangkang keong Sawah (Pila Ampullacea) dan ukuran biokoagulan dibuat skala  nano partikel dengan harapan mampu meningkatkan efektifitas penyisihan. Metode persiapan berupa deproteinasi, demineralisasi dan deasetilasi. Proses nano partikel menggunakan alat HEM, ukuran partikel diuji menggunakan SEM dan uji gugus fungsi menggunakan FTIR. Hasil penelitian menunjukkan bahwa kitosan memiliki warna coklat abu-abu, ukuran partikel serbuk nano, kadar air 5,34 %, kadar abu 1,14 % dan derajat deasetil 25,27 %. Efisiensi penyisihan TSS yang tinggi sebesar 55,19 %, kekeruhan 64,73 % dan COD 55,63 %. Dosis yang optimum sebesar 200 mg/L dengan kecepatan pengadukan cepat 150 rpm. Nano biokoagulan kitosan paling efektif untuk menyisihkan kekeruhan dibandingkan dengan COD dan TSS limbah cair indutri farmasi.
Analisis Willingness to Participate dari Masyarakat Pesisir Laut dalam Pengelolaan Sampah (Studi Kasus: Kelurahan Pulau Pari, Kabupaten Kepulauan Seribu) Chaerul, Mochammad; Laksana, Winda
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 3 (2019): November 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (191.922 KB) | DOI: 10.14710/presipitasi.v16i3.160-171

Abstract

Nowdays, marine debris becomes a major concern globally from many parties. Predicted source contributes to marine debris is settlement located at the coast. While facing several constraints, a municipal solid waste (MSW) management developed by community and local authority, especially taking consideration to keep a tourist attractive. Often, MSW management was applied without any consideration to the willingness of the community as a waste generator. The paper aims to find the willingness to participate related to MSW management from community at the coast with a case study of Pulau Pari Village of Kepulauan Seribu Regency. There were 6 criteria developed in the study namely: community habits, willingness to participate, community identification, environmental concern, social norms, and community perceptions, with the assessment to each subcriteria using likert scale 1-5 from 27 respondents. Subsequently, subcriterion of the participation related to MSW management were preferably chosen by respondent from each criterion. For example, from criterion of community habits the two subcriterion were dominantly chosen namely: pariticipate to provide waste storage (21%) and waste collection and directly sold by themselves (20%). Result of the willingness to participate could be used to determine a system or technology related to MSW management so that it may more sustained, especially to reduce the quantity of waste dumped to the sea.
Identifikasi Oksida Besi dan Pengaruh Pencucian Material Magnetik Pasir Besi Pantai Jomblom Menggunakan Metode Sonokimia Prasdiantika, Ricka; Agustin, Niyar Candra; Rohman, Abdul
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 3 (2019): November 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (469.937 KB) | DOI: 10.14710/presipitasi.v16i3.140-151

Abstract

This study aims to prepare iron sand, determine the type of iron oxide, and determine the effect of washing iron sand with sonochemical methods. Iron sand samples were obtained from Jomblom Beach, Kendal Regency. Iron sand was separated using an external magnet to obtain magnetic material. The magnetic material obtained was washed using distilled water manually stirred and using the sonochemical method. The material was dried at 80 °C. Material characterization was carried out using X-Ray Fluorescence (XRF) to determine the elements contained in iron sand, Fourier Transform Infrared (FT-IR) Spectrophotometer to identify functional groups in iron sand, X-Ray Diffraction (XRD) to find out the crystal size and crystallinity of iron sand, and the Transmission Electron microscope (TEM) to determine the morphology of iron sand. The characterization results showed that the iron sand of Jomblom Beach contained Fe (72.28%), Ti (7.89%), Al (7.00%), and Si (7.60%). The iron oxide contained in the Jomblom Beach iron sand was dominated by magnetite (Fe3O4). Washing iron sand magnetic material using the sonochemical method increased the composition of the element Fe, increased the crystallinity of the magnetic material, prevented aggregation, and reduced the crystal size of the magnetic material. Magnetic material which was washed using the sonochemical method produced 79.47% Fe element, crystallinity 74.94%, and crystal size 52.78 nm.
Analisis Risiko Proyek KPBU SPAM Regional Wosusokas Provinsi Jawa Tengah - Perspektif Pemerintah Sutantiningrum, Kartika Hapsari; Utami, Sri Rejeki Laku
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 3 (2019): November 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.272 KB) | DOI: 10.14710/presipitasi.v16i3.186-195

Abstract

During the dry season there was a scarcity of the availability of clean water in several Central Java province (Wonogiri, Sukoharjo, Karanganyar Disrict and Surakarta City), including Wosusokas Regional Region, so the government often drops clean water. So, the Government conducted the Wosusokas Regional Water Supply System Program. Public-Private Partnership (PPP) scheme is an option to overcome investment cost. This study aims to identify and analyze the risks of Wosusokas regional water supply system project eith government perspective. This research adopted a case study and literature analyze. Selected respondents from PDAB Tirta Utama, Dinas Bina Marga dan Cipta Karya Central Java, BPPW Central Java, District/ City Governments (Regional Water Supply Company, Bappeda and DPU) from Wonogiri, Sukoharjo, Karanganyar and Surakarta. The result found 35 risk factors that could potentially project failure or delay, the majority of these are considered high (11,43%), moderate (54,29%) and low (34,29). Risk factors with high probability are delay and increase cost of land acquisition, failure to complete the contract by the contractor / sub-contractor, failure initial tariff and delay periodic tariff adjustments. The results are useful for Government as a reference in managing the risks of PPP Spam Regional especially in Central Java.

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