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Nurhasanah Nurhasanah
INDONESIA
Civil Engineering, Building, Construction & Architecture

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Environmental Valuation of Raya Lati Petangis Park Using the Travel Cost Method in Paser District, East Kalimantan Syafruddin Anshary; Abdillah Munawir; Nurhasanah Nurhasanah
ASTONJADRO Vol. 12 No. 2 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i2.12261

Abstract

The Lati Petangis Forest Park is a forest area that was previously a mining concession area of PT BHP Kendilo Coal which has ended its operations and was later developed into a tourism area. The purpose of this study was to determine the aspects that influence the level of visits to the Lati Petangis Grand Forest Park, Paser Regency, East Kalimantan and to analyze the Willingness to Pay (WTP) value of the Lati Petangis Grand Forest Park. The method used is the Travel Cost Method and Consumer Surplus. The results of the calculation of the environmental valuation of Nature Tourism Forest Park Raya Lati Petangis, Batu Engau District, Paser Regency, East Kalimantan using the Travel Cost Method can be concluded that the average WTP value is known to be Rp. 247,959, so that the economic value of the Lati Petangis Grand Forest Park is Rp. Rp. 725,614,497.06 per year, the consumer surplus value is Rp. Rp. 1,820,671,342.3. From the regression analysis it was found that the independent variables in the form of travel costs (X1), Age (X2), Education (X3), Income Level (X4), Cleanliness Quality (X5), and Visitor Satisfaction Level (X6) have a significant effect on the economic value of Tahura Lati Petangis which can be characterized by the high number of visits.  
Utilization of Ozone and Kefir Whey Probiotics as a Green Technology in Coliform Removal in Health Care Facilities Wastewater Imam Rozali Fathar; Etty Riani; Nurhasanah Nurhasanah; Abdillah Munawir
ASTONJADRO Vol. 12 No. 3 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i3.13786

Abstract

Health care facilities wastewater (HWW), such as hospital, is classified as domestic wastewater according to Minister of Environment and Forestry Regulation No.P68/2016. One of the important parameters is total coliform.  The disinfection process using chlorine is effective in reducing the number of coliforms, but it is indicated to cause residues and side effects for other microorganisms in the receiving water bodies. This research is an experimental study by utilizing ozone and probiotics from whey kefir to eliminate coliform bacteria, aiming to determine the strategy for choosing a method for removing total coliform bacteria in HWW using the Analytic Hierarchy Process (AHP) approach. Data processing used Expert Choice 2011 software and it was found that the criteria with the highest score were environmental aspects, namely 0.302 and the priority indicator being minimizing the risk of pollution with the highest score, 0.366. Determination of strategies in the process of eliminating coliform bacteria in HWW by making choices, between the use of chlorine, ozone and a combination of ozone and whey kefir probiotics with five criterias approach (environmental, technological, social, economic, and institutional). Ultimate priority by using ozon was chosen with a score of 0.449; use of ozone and probiotics is the second priority with a score of 0.316; and utilization of chlorine with a score of 0.235.
Co-Authors Abdillah Munawir Etty Riani Imam Rozali Fathar Syafruddin Anshary