Dwi Ratri Mitha Isnadina
Universitas Airlangga

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KUPU-KUPU DI KAWASAN KONSERVASI IN-SITU PT PEMBANGKIT JAWA BALI UNIT BISNIS JASA O & M PLTU REMBANG Nita Citrasari; Edo Dwi Praptono; Uslah Hidayati; Habil Maqdum Faruqi; Trisnadi Widyaleksono Catur Putranto; Dwi Ratri Mitha Isnadina; Febri Eko Wahyudianto
STIGMA: Jurnal Matematika dan Ilmu Pengetahuan Alam Unipa Vol 11 No 01 (2018)
Publisher : FMIPA : Universitas PGRI Adi Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/stigma.vol11.no01.a1510

Abstract

Tujuan dari penelitian ini adalah untuk membuat baseline keanekaragaman kupu-kupu di kawasan konservasi insitu PT Pembangkit Jawa Bali Unit Bisnis Jasa O & M PLTU Rembang. Data tersebut digunakan dalam penyusunan dokumen PROPER menuju peringkat hijau atau beyond compliance, sesuai dengan Lampiran V Peraturan Menteri Lingkungan Hidup Nomor 3 Tahun 2014. Sampling dilakukan dengan dua kombinasi metode, yaitu penangkapan dan perangkap menggunakan umpan buang sepanjang transek. Terdapat lima titik sampling dengan jarak tiap perangkap ±100 m (Titik I S 06° 38.191’ dan E 111° 28.663’; Titik 2 pada S 06° 38.179’ dan E 111° 28.696’; Titik 3 pada S 06° 38.165’ dan E 111° 28. 728’; Titik 4 pada S 06° 38.083’ dan E 111° 28.655’; serta Titik 5 yang terletak pada koordinat S 06° 37.966’ dan E 111° 28. 616’). Kupu-kupu yang diperoleh terdiri atas empat famili dan lima spesies, yaitu Pteridae (1 spesies), Purple emperos (1 spesies), Lycaenidae (1 spesies) dan Nymphalidae (2 spesies). Spesies tersebut secara berurutan, meliputi Eurema hecabe, Hypolimnas bolina, Zizina otis, Junonia orithya madagascarensis, dan Melanitis leda. Kata kunci: baseline, keanekaragaman, kupu-kupu, PROPER, PT Pembangkit Jawa Bali Unit Bisnis Jasa O & M PLTU Rembang
Pemanfaatan Lumpur Hasil Samping IPAL Pabrik Pasta Gigi Sebagai Bahan Baku Batako Dalam Upaya Reduksi Limbah Dwi Ratri Mitha Isnadina; Raih Panji Sampoerna; Nita Citrasari
Jurnal Mineral, Energi dan Lingkungan Vol 2, No 2 (2018): Desember
Publisher : Fakultas Teknologi Mineral, Universitas Pembangunan Nasional (UPN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmel.v2i2.2370

Abstract

This research were aimed to know the best variation as brick raw materials according to SNI 03-0349-1989 about  Concrete Brick for Wall Pairs and to know Pb concentration in leachate from raw material mixture and from stabilization-solidification product. Sludge from Wastewater Treatment Plant’s Toothpaste Factory was used as a substitution of Portland cement which was varied to 10%, 30% and 50% of Portland cement. Batako were tested by external views and physical requirements according to SNI 03-0349-1989. Raw material and product of brick were analyzed by TCLP for Pb metal using Atomic Absorption Spectrophotometric method. The selected sample variation as a large hollow brick material based on SNI 03-0349-1989 is 30% of sludge substituting Portland cement with grade II quality. The concentration of Pb in leachate of brick raw material for each variation was 0.84 mg / L; 0.95 mg / L; and 1.02 mg / L. While the concentration of Pb in the leachate of brick for each variation was 0.40 mg / L; 0.45 mg / L; and 0.49 mg / L.
Karakterisasi dan Pemilihan Alat Pengendali Limbah Sandblasting di Bengkel Blasting Industri Konstruksi Kapal Ahmad Erlan Afiuddin; Ragil Zika Hibriza; Dwi Ratri Mitha Isnadina
Al-Ard: Jurnal Teknik Lingkungan Vol. 4 No. 2 (2019): Maret
Publisher : Department of Environmental engineering, Faculty of Science and Technology, Islamic State University Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1502.226 KB) | DOI: 10.29080/alard.v4i2.499

Abstract

Sandblasting waste from the blasting process of ship construction has a high potential to pollute the air and a negative impact to the environment or human health. Nowadays the sandblasting waste from the blasting process of the ship construction industry has not been well managed, Therefore, it is necessary to characterize sandblasting waste and to select and apply an appropriate sandblasting waste control device. Tests was carried out by taking particulate samples in the site with High Volume Air Sampler (HVAS) equipment followed by the Gravimetric method, Scanning Electron Microscopy (SEM) and Atomic Absorbtion Spectrophotometry (AAS). The gravimetric method was used to test the concentration of sandblasting waste with an average yield of 6,654.545 mg/m3. The particulate size obtained from SEM testing was 1.751 to 63.03 µm, testing with the AAS method to get the value of heavy metal content of Fe and Al on average of 1.6375 mg/m3 and 2.2925 mg/m3. Control technology that can use for sandblasting waste are Gravity Settling Chamber or Cyclone for preremoval and Bag Filter or Scrubber or Electrostatic Precipitator as an advance removal.Keywords: ships construction, Sandblasting and Particulate control technology