Indonesian Journal of Environment and Sustainable Development

Analysis of Solid and Liquid Waste Characteristics of Tofu Industry in Bancar Village, Bungkal District, Ponorogo Regency

Rohima Nostia, Andi Kurniawan, Koderi — Mon, 31 Jul 2023 00:00:00 +0000

The tofu industry in Bancar village, Bungkal district, Ponorogo regency, East Java province is still at micro enterprise (MSME) level and is operated with simple technology, so the level of water and raw efficiency is high. Material consumption is still low and waste generation is relatively high. This study aims to analyze the solid and liquid waste characteristics of the tofu industry in Bancar Village, Bungkal District, Ponorogo Regency. To study this case, a sampling technique of solid and liquid waste was carried out and further testing was carried out in the laboratory. Based on the results of the research, the solid waste characteristics of the tofu industry contain moisture content of 93.18%; ash content of 0.21%; crude protein content of 2.77%; crude fiber content of 1.65%; carbohydrate content of 1.88%; calorie content of 21.48 Cal/100 gr. As for liquid waste, it characteristics has 5 parameters to be tested, namely Biological Oxygen Demand (BOD5) has a level of 869.7 mg/L, Chemical Oxygen Demand (COD) has a level of 4480 mg/L, Total Suspended Solid (TSS) has a level of 110 mg/L, and pH has a value of 3.95.

Keywords: characteristics, tofu industry, solid waste, liquid waste

Diversity and Biotic Index of Wild Pioneer Plants as Potential Bioindicators of Crude Oil-Contaminated Soil in Siak Regency, Riau Province, Indonesia

Dodi Risaundi, Suwondo Suwondo, Endang Arisoesilaningsih — Tue, 13 Jun 2023 00:00:00 +0000

This study aims to determine the spatial variations in the diversity of wild pioneer plants along the gradation of crude oil-polluted soils and to analyze their biotic potential as a bioindicator of crude oil-contaminated soils in Siak Regency. Sampling was done in three oil wells using a purposive sampling method (center, edge, far from the well) measuring 1 x 1 m². The soil at each contamination gradation was composited and analyzed for Total Petroleum Hydrocarbon (TPH) content. Vegetation data were analyzed using biotic indices such as density, Shannon-Wiener distribution index, species richness, rate of endemism, and importance value index. Potential bioindicator was analyzed by regression analysis, biplot, and IndVal. The results showed spatial variations in colonization, diversity, and structure of pioneer plants along the gradation of oil contamination. Species from the Cyperaceae, notably Scleria sumatrensis, Cyperus rotundus, and Fimbristylis ovata, were found in the center of the contamination area and resistant to oil contamination. The regression and biplot analysis revealed that along with the increasing soil TPH, the species richness and diversity index tended to decline, but the rate of endemism increased. IndVal analysis showed that C. rotundus and S. sumatrensis showed a potential bioindicators of oil-contaminated soils with TPH content of 2,700 to 3,300 ppm, while F. ovata, Panicum repens, and Imperata cylindrica was potential for TPH 692 to 851 ppm. Mimosa pudica was a sensitive plant and found on the soil TPH 73 ppm.

Keywords: bioindicator, crude oil-contamination, diversity, pioneer plants

Greenhouse Salt Tunnel as Innovation to Create Salt Production in the South Coast Malang Regency, Indonesia

Mon, 31 Jul 2023 00:00:00 +0000

Seawater is one of the potential resources in Indonesia. One of the commodities that can be produced from seawater is salt. Salt production in Indonesia is done mainly by evaporating seawater. However, weather problems are one of the obstacles to salt production. Alternative innovation to overcome weather problems in salt production is the Greenhouse Salt Tunnel (GST). The application of this innovation allows salt production to be carried out throughout the year. Most salt businesses in East Java are located on the north coast of East Java, while there is no salt production on the South Coast of East Java. One of the locations in East Java that can be used for salt production is the South Coast of Malang Regency. However, studies analyzing the need for innovation to create salt production in the South Coast of Malang Regency have never been reported. This study aimed to analyze the application of GST innovation to create salt production in the South Coast of Malang Regency. The methodologies were analyzing the suitability index of salt production sites, soil elevation analysis, wind direction and speed, and construction requirements for GST. The results show that Gajahrejo Village is very suitable for salt production. The salt production can be conducted using 12 GST constructions on a 2000 m² area. According to the results of this study, salt production in the south coast area of Malang Regency can be created using the application of GST innovation.

Keywords: aquatic resources; greenhouse salt tunnel; solar salts; south coast of Java; technology innovation

Community Participation Level of Penggung Village on the Agropolitan Region Development in Kecamatan Bandar Nawangan, Kabupaten Pacitan

Jenvia Rista Pratiwi, Rita Parmawati; Ridwan Muhamad Rifai — Thu, 10 Aug 2023 00:00:00 +0000

Pacitan Regency owns abundant natural resources, one of which is in the agricultural sector. In accordance with the RTRW of Pacitan Regency 2005-2025, there is a development plan for the Agropolitan Area in Bandar and Nawangan Sub-districts. This research aims to find out how the level of community participation in the development of the Agropolitan Area of Bandar Nawangan Subdistrict, Pacitan Regency. The descriptive quantitative approach was used to understand how community involvement in Agropolitan Area development planning. The level of community participation was measured using Arnstein's concept (A Ladder of Citizen Participation) and showed the level of community participation at the informing level, which is included in the tokenism classification. This study’s results recommended assistance to local leaders to have similar goals as the government as the means of increasing community participation. The village leaders have greater influence or control because of their proximity to the community. As a consequence, community participation in the development of the Agropolitan Area of Bandar Nawangan Sub-district, Pacitan Regency will be escalated.

Keywords: agropolitan, participation level, arnstein

Environmental Conservation-Based Sustainable Tourism at Mount Baung Nature Tourism Park, Indonesia

Joyti Joyti, Satti Wagistina — Fri, 25 Aug 2023 00:00:00 +0000

Mount Baung Natural Tourism Park (MBNTP) is a nature conservation area located in the upstream region of the Pasuruan Regency. MBNTP has interesting biodiversity and natural landscapes that need to be preserved. The aims of this research are: 1) to analyze the function of the MBNTP as a tourism and conservation area, and 2) to analyze the tourist attraction that is by the function of the conservation area. This study uses a quantitative approach and the technique of taking the number of samples by means of quoting. This type of research is observational. The type of data used is primary data collected through observation, interviews, and documentation. Documentation to collect secondary data. The analytical method used is modified indicators ADO-ODTWA (Object Operational Area Analysis of Natural Tourism Parks) and AHP (Analytical Hierarchy Process) which aim to analyze tourism and conservation activities and the influence of area designation in developing the beauty of bird tourism. A study on modifications of ADO-ODTWA and AHP found that MBNTP is consistent in maintaining and controlling the function of the area as a conservation and tourism activity, not as a main activity. The results of the study also show that the attractions that are in accordance with the function of the area are bird watching. However, most bird species in the MBNTP area are not protected and only 4 (four) species have protected status. Because most tourists have an interest in the uniqueness of birds that are classified as rare, birdwatching is more suitable to be combined in one package with outbound tours.

Keywords: sustainable tourism; environmental conservation; and tourist attractions