scholarly journals PENGARUH KONSENTRASI OZON TERHADAP NILAI PH DAN TOTAL DISSOLVE SOLID (TDS) PRODUK AIR MINUM DALAM KEMASAN (AMDK)

2021 ◽  
Vol 7 (2) ◽  
Keyword(s):  
2019 ◽  
Vol 3 ◽  
pp. 627
Author(s):  
Muhammad Ramdhan ◽  
Suria Darma Tarigan ◽  
Yuli Suharnoto ◽  
Hadi Susilo Arifin

erkembangan Kota Bogor tidak bisa dilepaskan dari keberadaan dua sungai utama yang melewatinya, yaitu Sungai Ciliwung dan Sungai Cisadane. Aktivitas penduduk di sekitar Daerah Aliran Sungai (DAS) Sungai Ciliwung dan Sungai Cisadane sangat berpengaruh terhadap kualitas air sungai, karena sebagian dari limbah buangan hasil aktivitas tersebut langsung dibuang disungai. Analisa ini bertujuan untuk mengetahui kualitas air Sungai Ciliwung dan Sungai Cisadane Kota Bogor pada tahun 2017. Data yang digunakan dari pengambilan sampel air di lapangan pada bulan Agustus di 10 titik pengamatan. Selanjutnya hasil dianalisa menggunakan Metode Water Quality Index (WQI). Parameter yang digunakan meliputi Temperatur, Total Dissolve Solid, Turbiditas, pH, DO, Nitrit, Amonia, Fosfat, Minyak dan Lemak serta Total Coliform. Parameter tersebut dianalisa secara insitu menggunakan alat portable Water Quality Checker juga melalui analisis laboratorium. dan hasilnya bahwa kualitas air yang masuk ke Kota Bogor mengalami penurunan setelah melewati area Kota Bogor.


POSITRON ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 52
Author(s):  
Kartika Hajar Kirana ◽  
Mechdi Ghazali ◽  
Luh Ayu Eka Safitri Septiana ◽  
Dini Fitriani ◽  
Eleonora Agustine ◽  
...  

Sungai Citarum merupakan sungai utama yang ada di Provinsi Jawa Barat yang sangat penting bagi kehidupan sosial dan ekonomi. Di bagian hilir, Sungai Citarum ini banyak melewati daerah pemukiman padat penduduk, daerah industri, dan bahkan pesawahan. Oleh karena itu, perlu kajian mengenai kondisi Sungai Citarum salah satunya dengan mengidentifikasi parameter electrical conductivity (EC), total dissolve solid (TDS), pH dan suhu serta karakteristik mineral magnetik pada sedimen melalui analisis sifat magnetik, mineralogi dan morfologi magnetiknya. Pengukuran parameter EC, TDS, pH dan suhu dilakukan secara in situ pada sampel air Sungai Citarum, pengukuran sifat magnetik dilakukan pada sampel sedimen yang telah dipreprasi, sedangkan pengukuran mineralogi dan morfologi dilakukan pada sampel sedimen yang telah diekstraksi. Sifat magnetik sedimen diketahui dari nilai suseptibilitas magnetik dual frekuensi yang diukur menggunakan Bartington Magnetik Susceptibilitymeter, sedangkan mineralogi dan morfologi magnetik diketahui berdasarkan hasil pengukuran scanning electron microscope–energy disperdsive x-ray (SEM-EDS) dan x-ray diffractometer (XRD). Hasil pengukuran secara in situ pada sampel air menunjukkan bahwa rentang nilai EC, TDS, pH dan suhu berturut-turut adalah (200–4120) mS/cm, (100–2060) ppt, 7,34–9,22, dan (26,8–32,6) oC. Sedangkan, hasil pengukuran sifat magnetik menunjukkan bahwa sampel sedimen Sungai Citarum bagian hilir memiliki nilai suseptibilitas magnetik frekuensi rendah (cLF) dengan rentang (65,00–173,80) x 10-8 m3/kg, sedangkan rentang nilai suseptibilitas magnetik frekuensi tinggi (cHF) adalah (64,90–165,70) x 10-8 m3/kg. Dari kedua pengukuran cLF dan cHF diperoleh rentang nilai cFD (%) sebesar 0,15–4,66. Selanjutnya, hasil analisis morfologi dari citra SEM-EDS dan analisis mineralogi berdasarkan pengukuran XRD menunjukkan dominasi jenis mineral magnetik pada sampel sedimen adalah magnetit. Mineral magnetit ini memiliki morfologi berbentuk oktahedral sebagai representasi mineral magnetik alami dan ada pula yang berbentuk spherule sebagai representasi mineral magnetik karena adanya proses oksidasi akibat kehadiran material antropogenik pada sedimen Sungai Citarum bagian hilir.


2007 ◽  
Vol 4 (2) ◽  
pp. 162-165 ◽  
Author(s):  
Susheel Kumar Sindhu ◽  
Amit Sharma

A systematic study has been carried out to explore the water quality index of ground water of various tehsils of Rampur district. Twenty five water samples from tube wells, open wells and hand pumps at various locations were collected and analyzed for pH, nitrate, turbidity, total dissolve solid, chlorides, total hardness, alkalinity and fluoride. In this study overall water quality of Rampur district is very poor and unsuitable for drinking purpose. Water quality of Bilaspur, Shahabad and Rampur city shows that water may not be used for drinking as well as domestic purpose. Present study recommends that the top priority should be given to water quality monitoring and indigenous technologies should be adopted to make water fit for drinking after treatment such as defluoridation, desalination.


2020 ◽  
Vol 4 (3) ◽  
pp. 178-184
Author(s):  
OIGANJI Ezekiel ◽  
Zakka Junior Emmanuel ◽  
Ezra Bello

Sachet water has gradually become the most widely consumed portable water for everyone in Nigeria. This study aimed to assess physiochemical and bacteriological properties of selected sachet water brands. Random sampling method was used to collect data from 20 selected brands within Jos North Metropolis, the 20 selected brands served as sampling frame where by 3 brands were selected for the pilot study. The three brands selected as pilot study were; FEDCOF, LOANE and MCEDEN. The samples of sachet water were collected from the 3 different brands within 24 hours of production which were transported to Bauchi State Water Board for analysis. The parameters were analyzed following standard procedures to determine the physical chemical and bacteriological content of the samples. The physiochemical properties of the samples were analyzed, it was observed that  the following parameters: pH, Temperature, Turbidity, Total Dissolve Solid, Total Hardness, Conductivity, Alkalinity, Nitrate, Sulphate, Chloride and Iron were within the permissible limit, as compared to National Agency for Food and Drug, Administration Control  and Standard Organization of Nigeria standards. Furthermore, bacteriological analysis was carried out on the three brands of sachet, remarkable presence of Faecal coli form count and total coliform count were detected and were though above the permissible limit set by NAFDAC and SON. It can be concluded that FEDCOF, LOANE and MCEDEN brands of Sachet in Jos North should not be consumed, when it has been kept beyond six (6) weeks, if consumed it may cause illnesses like typhoid fever, hepatitis, gastroenteritis and dysentery.


2021 ◽  
Vol 2 (1) ◽  
pp. 1-16
Author(s):  
Ahmad Rifai

Dalam tubuh manusia sebagian besar terdiri dari air. Tubuh orang dewasa sekitar 55%-60%, untuk anak-anak sekitar 65%, dan untuk bayi sekitar 80%. Tentu dengan kondisi seperti ini kebutuhan konsumsi air minum masyarakat yang tinggitidak dapat dielakkan lagi. Air tanah mengandung zat-zat mineral dalam konsentrasi yang sangat tinggi. sudah seharusnya melalui proses pengolahan sebelum diminum langsung untuk mendapatkan kondisi air yang aman untuk diminum.Termasuk dalam hal kondisi  fisik air, seperti TDS (total dissolve solid) air. Tujuan penelitian ini adalah untuk menganalisis kualitas TDS (total dissolve solid) air minum isi ulang di Kecamatan Pamboang tahun 2018.Penelitian ini merupakan Penelitian Kualitatif dengan menggunakan pendekatan fenomenologi. Subjek dalam penelitian ini adalah depot air minum yang terdiri dari Depot YY, Depot AM, dan Depot AN. Dengan beberapa kriteria subjek, yaitu air baku, air siap minum, dan depot air minum dikecamatan pamboang ( system pengolah air depot), dengan menggunakan teknik purposive sampling. Teknik pengumpulan data menggunakan triagualsi metode, yaitu pertama menggunakan sumber air baku dan air siap minum dari ketiga depot air minum (subjek penelitian) sebagai sumber data, ke-dua menggunakan alat digital TDs Meter Hold untuk menentukan nilai kualitas TDS (total dissolve solid) air, ke-tiga menggunakan lembar observasi sebagai media pencatatan hasil pengukuran yang dilakukan dalam penelitian, yaitu kualitas TDS (total dissolve solid) air, ke-empat dokumentasi dengan menggunakan kamera handphone untuk mengabadikan kondisi sekitar tempat penelitian. Analisis dalam penelitian ini menggunakan analisis deskriptif yang terdiri dari reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan terjadi perubahan pada kualitas TDS (total dissolve solid) air setelah melalui system pengolah air depot dengan persentase perubahan yang berbeda-beda. Pada pemeriksaan pertama (air baku) nilai kualitas TDS (total dissolve solid) air belum memenuhi syarat untuk di minum lansung, sedangkan pada meriksaan ke dua atau setelah melalui system pengolah air depot nilai kualitas TDS (total dissolve solid) air dinyatakan telah memenuhi syarat kualitas air minum menurut PERMENKES No. 492.


2020 ◽  
Vol 8 (2) ◽  
pp. 195-202
Author(s):  
Yeni Ristya Wardani ◽  
◽  
Mardhiyyatin Naqiyah ◽  
Devy Nurmayanti ◽  
Abdul Aziz N Rohman ◽  
...  

Natural resources on Earth consist of abiotics and biotics. Water, including biotic natural resources is one of the most important elements in supporting the survival of human life. One of water source which was widely used by resident around the Yogyakarta State University was the water of Institute of Development and Quality of Education Assurance (Lembaga Pengembang dan Penjamin Mutu Pendidikan) of Yogyakarta State University. This water resource was used to fulfill the needs of employees, the institute visitors, and traders around Karangmalang Culinary Park. However, the prior observation showed that the color of the water was prone to muddy and contains many sediments substances. This research was aimed to filter the water of that institute into pure water according to the physics parameter. This research was conducted by utilizing biomass waste in the form of teak, husk, and coconut fiber to be processed into active charcoal which later used to filter the water. Additional materials used in this research were sand and gravel. The result of water’s total dissolve solid (TDS) has decreased by using the three active charcoal of biomass waste. Among those activated charcoal, the carbon which formed by teak showed the most significant result. Furthermore, in Fe content test, the most significant result of decreasing Fe content was showed by activated charcoal from husk base material. It can be concluded that the most effective activated charcoal material was formed by teak biomass waste which has a large pore structure.


2016 ◽  
Vol 82 (1) ◽  
Author(s):  
. SUHARYANTO ◽  
. TRI-PANJI ◽  
Shinta PERMATASARI ◽  
Khaswar SYAMSU

AbstractCultivation of Spirulina platensis in an abundant available and inexpensive medium such as palm oil mill effluent (POME) will produce biomass and valuable active materials at competitive price.  Utilization of POME  will also reduce pollution level and support cleaned production.  The objectives of this research were to determine the dilution rate of  S. platensis and the reduction rate of pollution level of POME on continuous photobioreactor. Preliminary research was conducted by growing S. platensis on POME medium with various concentration, namely 25%, 50%, 75%, and 90% POME on batch system. The experiment was conducted in 1.2 L capacity continous photobioreactor using medium containing a mixture of POME and synthetic medium. Feeding rate was set up at 0.05 mL/5 sec. (dilution rate of  0.03 hr -1), 0,05 mL/10 sec. (dilution rate of  0.015 hr -1), and 0.05 mL/15 sec. (dilution rate of 0.01 hr -1). For optimum dilution rate, the experiment was scaled up eight times using 10 L capacity continous photobioreactor. The results showed that optimum growth rate of S. platensis (µmax) = 0.233, was achieved using medium consisting of 90% POME and 10% synthetic medium after two weeks. Dilution rate of 0.015 hr -1 on photobioreactor was the optimum dilution rate for growth of S. platensis as well as for decreasing polution level of POME. The result of the eight-times scale up photobioreactor using flow rate of 0.4 mL/10 sec and dilution rate of 0.015 hr -1 showed that the growth of S. platensis was relatively constant as reflected by the OD value of the suspension culture and the concentration of cellular biomass. At the optimum condition, production of S. platensis biomass was 0.267g/L and pollution level was decrease 24%. The rate of outflow also resulted the constant decrease of polution level based on total carbon (TC), total dissolve solid (TDS), dissolve oxygen (DO), BOD, and COD parameters indicating that  continuous photobioreactor was running at steady state.Abstrak Kultivasi S. platensis dalam media yang tersedia me-limpah dan murah seperti limbah cair pabrik kelapa sawit (LC-PKS) akan menghasilkan biomassa dan bahan aktif bernilai ekonomi tinggi dengan harga kompetitif. Pemanfaatan  LC-PKS  juga  akan  mengurangi  dampak pen-cemaran lingkungan dan membantu menciptakan sistem produksi bersih. Penelitian ini bertujuan menetapkan laju dilusi optimum per-tumbuhan S. platensis dan laju penurunan tingkat cemaran LC-PKS pada fotobioreaktor sistem kontinyu. Untuk mengukur laju alir sistem kontinyu, pertama S. platensis ditumbuhkan pada media LC-PKS 25%, 50%, 75%, dan 90% dengan sistem batch.  Pertum-buhan S. platensis  pada fotobioreaktor sistem kontinyu kapasitas 1,2 L dirancang dengan variasi laju alir umpan berupa LC-PKS yang dicampur media sintetik pada konsentrasi optimum. Variasi laju alir pengumpanan diatur pada variasi 0.05 mL/5 detik (laju dilusi 0,03 jam-1), 0,05 mL /10 detik (laju dilusi 0,015 jam -1), dan 0,05 mL/15 detik (laju dilusi 0,01 jam-1). Pada laju alir optimum, skala percobaan diperbesar delapan kali menggunakan foto-bioreaktor berkapasitas 10 L. Hasil penelitian menunjukkan bahwa laju pertumbuhan maksimum (µ maks) adalah 0,233 jam-1 yang diperoleh dengan campuran media LC-PKS 90% dan media sintetik 10%  selama dua minggu. Fotobioreaktor dengan laju dilusi 0,015 jam-1 merupakan laju alir umpan yang optimum untuk pertumbuhan S. platensis serta menghasilkan penurunan tingkat cemaran LC-PKS yang optimum.  Hasil penelitian dengan perbesaran skala delapan kali menggunakan laju alir pengumpan 0,4 mL/10 detik  (laju dilusi 0,015 jam-1)  menunjukkan bahwa pertumbuhan S. platensis relatif konstan. Produksi biomassa sel rata-rata sebesar 0,267g/L dan kadar cemaran limbah rata-rata menurun sebesar 24%. Laju alir keluar (outflow) juga menghasilkan kadar cemaran limbah yang konstan ber-dasarkan parameter total karbon (TC), total dissolve solid (TDS), dissolve oxygen (DO), BOD, dan COD yang menunjukkan bahwa sistem fotobioreaktor kontinyu ini berjalan dengan baik.


2016 ◽  
Vol 9 (1) ◽  
pp. 1-7 ◽  
Author(s):  
RS Lucy ◽  
ME Huda ◽  
SMD Islam

The study was conducted to investigate the physicochemical and biological parameters of fish culture and reconstructed pond at Jahangirnagar university campus. The physicochemical parameters of water in culture and reconstructed pond were analyzed during February to September, 2014 and the mean value of temperature were 30.21±0.89 ºC and 29.96±0.91 ºC, pH value were 7.20±0.29 and 6.97±0.39, Dissolve Oxygen (DO) value were 6.44±0.40mg-1 and 6.22±0.30mg-1, Biochemical Oxygen Demand (BOD5) value were 1.02±0.32mg-1 and 0.78±0.18mg-1, Total Dissolve Solid (TDS) were 0.69±0.04mg-1 and 0.64±0.04mg-1, Electric Conductivity (EC) value were 215.38±21.27?Scm-1 and 128.58±1.10?Scm-1. From the study of biological parameter, it was found that Chlorophyceae and Euglenophyceae were dominant in studied ponds and the abundance of phytoplankton are in the order of Chlorophyceae >Euglenophyceae > Bacillariophyceae > Cyanophyceae. The highest productivity was found in culture pond which indicates the suitability of using for aquaculture.J. Environ. Sci. & Natural Resources, 9(1): 1-7 2016


PRISMA FISIKA ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 34
Author(s):  
Flisia Elsa Lavianiga ◽  
Nurhasanah Nurhasanah ◽  
Boni Pahlanop Lapanporo

Telah dilakukan penelitian tentang peningkatan kualitas air tanah gambut menggunakan metode elektrokoagulasi dengan penambahan garam. Penelitian ini bertujuan untuk mengetahui kualitas air gambut setelah melewati proses penjernihan dengan metode elektrokoagulasi. Pengambilan sampel air gambut dilakukan di Jalan Karya, Kabupaten Kubu Raya. Sampel air gambut diambil secara langsung dari sumber air gambut, kemudian diproses menggunakan metode elektrokoagulasi. Dalam penelitian ini digunakan variasi waktu kontak dengan 6 buah plat aluminium sebagai elektroda, dan tegangan yang diberikan oleh power supply sebesar 30 V. Parameter yang diuji meliputi pH, TDS (Total Dissolve Solid), warna, dan kadar besi. Kondisi awal air tanah gambut sebelum melalui metode elektrokoagulasi yaitu, nilai pH sebesar 5, nilai TDS sebesar 39 mg/L, warna pada skala 1021 Pt.Co, dan kadar besi terlarut sebesar 24,92 mg/L. Berdasarkan hasil penelitian yang telah dilakukan, diperoleh nilai yang memenuhi standar baku kualitas air bersih pada waktu kontak 300 menit. Pada variasi ini diperoleh nilai optimum dengan nilai pH sebesar 7, TDS sebesar 99 mg/L, warna pada skala 0 Pt.Co, dan kadar besi terlarut sebesar 0 mg/L.  


2021 ◽  
Vol 45 (1) ◽  
Author(s):  
T. A. Olusi ◽  
I. A. Simon-Oke ◽  
A. V. Akeju

Abstract Background The study of habitat preference and identification of malaria vector is one of the important steps in malaria control. Knowledge of local Anopheles mosquitoes capable of transmitting malaria parasites has contributed largely to the reduction in the menace caused by malaria infection. This present study examined the habitat nature and identified the species of Anopheles mosquitoes involved in malaria parasites transmission in the study area. Monthly collection and identification of the fourth larval stage was carried out from October 2018 to September 2019. Result The prevalence of An. gambiae complex and An. funestus larvae was 95.86 and 4.15%, respectively. The highest (14.17%) and the least (4.25%) number of larvae were collected in the month of November and May, respectively. Out of the total number of Anopheles mosquito larvae collected during the wet season, 69.77% of the larvae was collected from the clean habitat, while 30.23% was collected from the dirty habitats. During the dry season, the larvae dwell more in dirty aquatic habitat, with 64.74% of the larvae collected from the dirty habitats, while 35.27% was recorded from clean habitats. Statistically, there was no significant difference in the electrical conductivity when comparing both seasons (P = 0.19; X2 = 53.14). The average recorded electrical conductivity in dry and wet seasons were 350.76 µS/cm and 178.91 µS/cm, respectively. The pH recorded in dry and wet seasons were 6.78 and 7.04, respectively. There was no significant difference in the pH when both seasons were compared (P = 0.13; X2 = 54.89). The total dissolve solid where not significant different (P = 0.58; X2 = 13.35) when both seasons were compared. The temperature (P = 0.04; X2 = 43.54) and dissolve oxygen (P = 0.00; X2 = 30.09) were significantly different comparing dry and wet seasons in all the habitats where the immature stages of Anopheles mosquitoes were collected. Conclusion The study revealed major vector of malaria parasite in the study location, also the pattern of their breeding during dry and rainy season which is influenced by some selected ecological factors.


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