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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Nusantara Hasana Journal
Hasna Khairunnisa
Universitas Sebelas Maret
Agriculture, Biological Sciences & Forestry Humanities Earth & Planetary Sciences Economics, Econometrics & Finance Education Nursing

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IDENTIFIKASI BIODIVERSITAS TUMBUHAN DI DESA SAWAHAN, NGEMPLAK, BOYOLALI Frista Ananda Rizky; Hasna Khairunnisa
Nusantara Hasana Journal Vol. 2 No. 8 (2023): Nusantara Hasana Journal, January 2023
Publisher : Yayasan Nusantara Hasana Berdikari

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Abstract

Sawahan Village is one of the villages in Central Java that is included in the Urban Fringe area. Its location in the Urban Fringe area causes high land conversion activities in the village. Land function change activities have a direct impact on the smaller site of Green Open Space which then affects reducing tree biodiversity in Sawahan Village. Therefore, this study was conducted to achieve an inventory of the species in Sawahan Village and to determine the diversity and composition of invasive alien plants in the vegetation community in Sawahan Village. The research combines qualitative and quantitative description methods with data collection techniques through field surveys using sample plots. The entire sample plots used were 38 plots with a size of 20x20m, carried out in 15 blocks in Sawahan Village. The results showed that the tree species found in Sawahan Village were 47, with a total of 1,724 individuals. Arecaceae and Myrtaceae is the most dominant family in Sawahan Village with each family has a total of as many species as five Species. At the species level, Musa acuminata Colla, which belongs to the Musaceae family, is the plant species with the highest Important Value Index (IVI), with a value of 31.39%.
Spirulina Platensis as Biocoagulant to Reduce Turbidity and Total Suspended Solids in Domestic Wastewater Fathiya Nur Afifah; Fayza Nur Rachmalia; Frista Ananda Rizky; Hasna Khairunnisa; Nida Ulhaq Filardhiani; Lia Kusumaningrum
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 2 (2024): July 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i2.558-569

Abstract

It is essential to treat wastewater before it is discharged into water bodies. The wastewater treatment method that is widely used is coagulation using the synthetic coagulant PAC, whose continuous use can harm human health and reduce the pH value of the water. Therefore, wastewater treatment innovation is needed to overcome this problem. This study will examine the potential of Spirulina platensis as a biocoagulant to reduce turbidity and TSS. This research was conducted in 3 stages, starting from the extraction, protein test, and optimum dose test. The results showed that Spirulina platensis has 0.0114375% protein in 20 gr and can reduce the lowest turbidity at doses of 10-5 ml / L and 10-10 ml / L (in 2 injections) with an effectiveness value of reducing turbidity levels by 63.02% and able to reduce the lowest TSS levels at doses 10-10 ml / L (in 2 injections ) with an effectiveness value of reducing levels by 85%. Based on the Wilcoxon test, it was found that the P-value < 0.05, which means that there is a significant difference in TSS values and turbidity between the results before and after Spirulina platensis biocoagulant treatment. 
Co-Authors Fathiya Nur Afifah Fayza Nur Rachmalia Frista Ananda Rizky Lia Kusumaningrum Nida Ulhaq Filardhiani