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All Journal Jurnal Serambi Engineering Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Jurnal Sains dan Teknologi
Yayok Suryo Purnomo
Universitas Pembangunan Nasional Veteran Jawa Timur
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Analisis Longitudinal Struktur Komunitas Makrozoobentos yang Tercemar Limbah Pertambangan Emas Skala Kecil di Sungai Cikondang, Jawa Barat Kabul Fadilah; Tika Nurmala; Tri Dewi K.P.; Yayok Suryo Purnomo; Sunardi
Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Vol. 5 No. 1 (2023): JPPL, Maret 2023
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/jppl.v5i1.1788

Abstract

Small-scale gold mining activities are still mostly carried out in various regions in Indonesia. The use of mercury (Hg) in the process of extracting gold from sediments can be a source of pollution for aquatic ecosystems and organisms. The aim of this study was to analyze the macrozoobenthos community structure in the Cikondang River which was affected by Hg pollution due to small-scale gold mining. Sampling was carried out by survey method at 5 sampling points along the Cikondang River from upstream to downstream. Water quality parameters measured include temperature, transparency, current velocity, pH, Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD). Hg concentrations in sediments and macrozoobenthos were measured using automatic mercury analyzer. The results showed that the concentration of Hg in sediments in the Cikondang River ranged from 0.63–52.48 mg/kg and the accumulation of Hg in macrozoobenthos ranged from 0.97 to 0.98. The macrozoobenthos diversity index was 1.50-2.17 and the dominance index was 0.16-0.30. The most group of macrozoobenthos found was from the Gastropod class, followed by the Insecta and Malacostraca classes. Macrozoobenthos in the Cikondang River were only found in the downstream of the river, at Sampling Points 4 and 5 only. This showed that Hg pollution in the Cikondang river is highly toxic, caused macrozoobenthos was not found at Sampling Point 1, 2 and 3.
Analisis Risiko K3 dengan Metode HIRADC pada Industri Pengolahan Makanan Laut di Jawa Timur Radityazty Dahayu Nurhayati; Yayok Suryo Purnomo
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 3 (2023): Juni 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i3.1883

Abstract

As a company engaged in the food sector, the seafood processing industry certainly prioritizes the freshness of ingredients to maintain the quality of its products. Various existing processes can pose a potential hazard caused by the work environment. It is necessary to identify and analyze the work and the hazards that may arise. HIRADC, which stands for Hazard Identification, Risk Assessment, and Determining Control, is a systematic, thorough, and structured method for identifying various problems that affect processes and risks related to equipment that can harm people. existing equipment or systems. This research is qualitative in nature with a risk analysis approach to the safety of workers working in engineering departments including workshops, maintenance, transformer rooms, generator rooms, boilers, compressors, ice flakes, and WWTP (Wastewater Treatment Plant) in the seafood processing industry in Lamongan, East Java. The results obtained were 37 types of work implementation with 40 hazard risks. Each hazard risk is classified into a low category of 1 hazard risk, a medium category of 31 hazard risks, and a high category of 8 hazard risks. The hazard risk assessment after control was carried out resulted in a low category of 34 risks and a medium category of 6 risks.
Koagulan Polielektrolit Alami dari Kulit Udang Kaki Putih untuk Menyisihkan Parameter Warna, TSS, dan COD dalam Limbah Cair Batik Rizal Bahtiar Muqim; Yayok Suryo Purnomo
Jurnal Serambi Engineering Vol 8, No 4 (2023): Oktober 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i4.6903

Abstract

Air limbah dari industri batik rumahan umumnya dibuang langsung ke perairan tanpa pengolahan yang layak sehingga terkandung secara masif parameter pencemar seperti warna, TSS, dan COD. Penelitian ini akan mengeksplorasi penggunaan polielektrolit alami yang diekstrak dari kulit udang kaki putih sebagai koagulan dalam upaya untuk menyisihkan kandungan parameter warna, TSS, dan COD dalam air limbah batik dari industri rumahan di kota Sidoarjo. Eksperimen dalam penelitian ini meliputi proses ekstraksi polielektrolit kitosan dari kulit udang kaki putih, pengujian koagulan dalam air limbah batik di berbagai variasi, dan analisa pH, kecepatan pengadukan serta dosis optimum dari koagulan dalam menurunkan beban pencemar yang terdapat dalam air limbah. Hasil penelitian menunjukkan bahwa koagulan yang dibuat efektif dalam menghilangkan parameter-parameter pencemar tersebut dengan tingkat penyisihan yang signifikan pada air limbah dengan pH 5 dan diaduk dengan kecepatan 90 RPM. Selanjutnya, dosis optimum yang tercatat untuk menurunkan parameter warna terdapat pada dosis 500 mg/l dengan nilai penyisihan sebesar 83,1%, sedangkan untuk parameter TSS dan COD dosis optimum yang tercatat terdapat pada dosis 200 mg/l dengan nilai penyisihan beturut-turut sebesar 82,7% dan 64,7%.
Co-Authors Kabul Fadilah Radityazty Dahayu Nurhayati Rizal Bahtiar Muqim Sunardi Tika Nurmala Tri Dewi K.P.