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RAW WATER QUALITY ANALYSIS TO DISCOVER THE CAUSE OF PIPELINE SCALLING PROBLEM IN PT. X (ICE PRODUCTION COMPANY) Harmayani, Kadek Diana; Sudiartha, Gede Adi Wiguna; Suyasa, I Wayan Budiarsa
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 5, NUMBER 1, OCTOBER 2021
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v5i1.10748

Abstract

PT. X is one of the ice companies in which its largest company is located in Bali, more precisely in the Pidada area, North Denpasar. Based on field observations the area is an area that has a calcareous soil structure. The water source of PT. X was extracted from the groundwater. From the field observation, it was found that the pipeline network, that connected the inlet water to water treatment system and ice production units, was severely covered by faint white scale. In order to discover the origin of this scale, water quality testing need to be carried out.  From the results, it was found that the total hardness in the inlet water, taken from the groundwater tap, was 162.85 mg/l with calcium concentration of 2.15 mg/l and iron 3.83 mg/l. Water quality testing was also carried out in the water treatment unit consisting of resin softener where the total hardness surprisingly increased into 279.81 mg/l, calcium concentration was 2.96 mg/l, iron concentration was 0.55 mg/l. Even after being treated in softener resin, the total hardness increased sharply to 483 mg/l, which categorized as extreme hardness. The increase in total hardness indicates that there was a failure in the operation of the water treatment system, even it also contributed to the higher hardness and calcium concentration. This over-year’s treatment failure has been causing accumulation of hardness and calcium concentration in the compartment of both water treatment system and ice production unit that inflicts a higher hardness level in the effluent.
Microplastics in Aquatic Environments: A Systematic Review of Distribution and Biological Effects in Waters, Sediments, and Biota Ayuni, Ni Putu Sri; Watiniasih, Ni Luh; Suyasa, I Wayan Budiarsa; Hendrawan, I Gede
Proceeding of International Conference on Biology Education, Natural Science, and Technology 2025: Proceeding of International Conference on Biology Education, Natural Science, and Technology
Publisher : Universitas Muhammadiyah Surakarta

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

Abstract

Currently, the issue of microplastic pollution in aquatic ecosystems is a significant cause for worry. Microplastics, which are tiny pieces of plastic, are readily absorbed by freshwater organisms, leading to detrimental impacts on their growth, reproduction, predatory abilities, and other aspects. This study aims to review the scientific literature on microplastics in freshwater environments including waters, sediments, and biota in order to identify their existence and impact. For such, a systematic review was conducted, following the PRISMA guidelines, applying a descriptive and statistical analysis to the data. The original research articles in "microplastics in freshwaters". Up to 177 papers involving microplastic in freshwaters, published between 2013 and 2023, are identified in the Publish or Perish. Of the 177 articles, 66 are excluded because they include review articles. Finally, this review will to assess the excistence and influence microplastics in water, sediment and biota, in freshwater environmental.
Co-Authors A. A. Bawa Putra Adalgisa D.D.G. Alvares AGUS MULIADI PUTRA, AGUS MULIADI Ahmad Zakir Anak Agung Gede Agung Satrya Dwipayana Atita Arli Tiara AWANG ERRY SOFYAR IRAWAN Bejo Slamet Cok Istri Putri Kusuma Kencanawati D. Rizkiyanti Darmayasa, Dewa Komang Desak Putu Risky Vidika Apriyanthi Dewa Nyoman Alit Ardana Dhana J, Ida Bagus Dini Imanniar dody setiawan Esti Arisetya Dewi Febby Hartesa W Gede Adi Wiguna Sudiartha Gede Widihati, Ida Ayu I .G. P. Agus Suryawan I Dewa Ketut Sastrawidana I G. A. K. S. P. Dewi I G. M. A. P. Raharja I Gede Hendrawan I Gede Mahardika I Gusti Agung Gede Bawa I Gusti Ayu Kd Ravika Sugianthi I Gusti Ayu Kunti Sri Panca Dewi I Gusti Bagus Sila Dharma I Gusti Lanang Wiratma I Gusti Ngurah Bagus Parasara I K. G. Antara i kadek ardi putra I Kadek Sutomo Putra I Kadek Widiantara I Ketut Adi Sugita I Ketut Berata I Ketut Sundra I Komang Gde Bendesa I M. G. Sudyadnyana Sandhika I M. Siaka I Made Adhika I Made Sara Wijana I Made Siaka I MD KARDA I Nengah Simpen I Nengah Wirajana I Nyoman Artabudi I NYOMAN RAI I Nyoman Sudipa I Nyoman Suprapta Winaya I P Sastra Negara I Wayan Arthana I Wayan Diara I Wayan Gede Gunawan I Wayan Jana I Wayan Januariawan I Wayan Kasa I Wayan Nuarsa I Wayan Sandi Adnyana I Wayan Suarna I Wayan Sudiarta I WAYAN WINDIA I WY. G GUNAWAN I. M. S. Negara I.A.M. Trisnawulan I.G.A.M. ARYASIH Ida Ayu Alit Laksmiwati Ida Ayu Ary Pramaswari IDA AYU ASTARINI Ida Bagus Gede Darmayasa IK Sudibia IM Suyana Utama IM TAPAYASA IN SUWIRTA Irdhawati Irdhawati Iryanti Eka Suprihatin J. B. Butler James Sibarani K. Swandiyasa K. Yogi Purnamawati K.G. Darma Susila Kadek Diana Harmayani Ketut Gede Suryawan Luh Putri Kriswidatari M. FAIRUZ ABADI, M. FAIRUZ M. Sudiana Mahendra Made Arsawan Made Rahayu Kusumadewi Made Santiari N. NGR. ADISANJAYA N.K. Mardani N.L.P Mahendra Dewi Nakamura, Shingo Ni G. A. M. Dwi Adhi Suastuti Ni Ketut Suwiti Ni Komang Ayu Septiani Ni Komang Lia Wahyuni Ni Luh Gede Sudaryati Ni Luh Putu Mega Priantari Ni Luh Watiniasih NI LUH WIDYASARI Ni M. Indra Wahyuni Ni Made Indra Wahyuni Ni Made Setiari Ni Made Tia Juliasari Ni Putu Diantariani Ni Putu Giyan Adnya Antari Ni Putu Sri Ayuni Nixon Rammang, Nixon NPG Suardana P. D. S. Udayani Pradnyadari, I Gusti Ayu Lia Putu Dian Paramitha Dewi Putu Primantari Vikana Suari Putu Sri Juniarta Rosalia Gosal Sang Ayu Sri Satya Laksmi Utari Shinta E. Maharani Siti Helmyati Sophia Maria Oliva Lau Sri Dian Meita Sari Sri Wahjuni Sudiartha, Gede Adi Wiguna Suko Ismi Supardiono Supardiono Syamsul Alam Paturusi Takahiro Osawa Vo, Huy Thanh W. Gina Anggreni Wahyu Dwijani Wahyu Dwijani S. Wahyu Dwijani Sulihingtyas Wayan Trisna Dewi Wirajana, Nengah WIWIK SUSANAH RITA Y. P. Mau Yan Ramona Yenni Ciawi Yohanis Umbu Kaleka, Yohanis Umbu