Media Ilmiah Teknik Lingkungan (MITL)

Tourism Potential and Waste Management in Coastal Areas of Bengkulu City

Ahmad Yani — 2025-07-12

This study uses strategic management to uncover emerging issues intensively and comprehensively. This study aims to determine what efforts have been made to improve and maximize existing resources so that they can be used in the development of coastal tourism and what obstacles arise in coastal tourism objects in Bengkulu City. The focus of this study is on the strategy for improving the tourism sector, especially coastal tourism, as the main instrument for measuring the environment and obtaining strategies for strengths, weaknesses, opportunities and threats needed in the planning process for developing and developing coastal tourism. The conclusion of this study is based on the strategy for developing coastal tourism in Bengkulu City carried out by the Bengkulu City Tourism Office, there are still indicators that have not been successful, as seen from the uneven distribution of development in several leading destinations and the lack of foreign tourists visiting. One of the problems in the coastal area is waste management. Waste can cause environmental problems if its existence is not handled properly. Based on the results of this data collection, several strategies for waste management in the coastal area of Panjang Beach in Bengkulu City are presented, namely storage, collection, transportation, processing, final processing, financing institutions, regulations.

Water Purification Mechanism Using Appropriate Technology Reverse Osmosis, Ozonation, UV (Ultraviolet) Sterilization

Zilfiyatul Makida — 2025-07-12

Global problems related to scarcity of clean water and water pollution have created an urgent need for effective solutions. Rapid urbanization and inexorable population growth have exacerbated this situation, increasing demand for clean water while decreasing its availability. In responding to this challenge, desalination technologies such as reverse osmosis (RO) and membrane processes have been considered as promising solutions although they are still faced with technological obstacles and large capital investments. In addition, concerns about water pollution by organic pollutants and bacteria have encouraged the development of effective wastewater treatment methods, including the use of conventional ozonation with membrane contactors and UV light. This research aims to explore new approaches to water treatment, including the use of membrane technology, conventional ozonation, and innovative disinfection methods such as UV light, with the hope of contributing to solving global problems related to clean water and water pollution. Through a series of comprehensive methodological steps, this research highlights the potential of these technologies to improve water quality and reduce contamination in a variety of application contexts.

Utilization of Treated Wastewater from the Ready-Mix Concrete Industry for Road Spraying

Sabrina Haifa Rosyadah — 2025-07-12

The ready-mix concrete industry plays a crucial role in supplying concrete for various construction purposes. During its production and operational processes, this industry generates wastewater from laboratory activities, mixer van washing, and truck mixer cleaning. The generated wastewater is treated and planned to be reused for road spraying within the industrial area. This paper aims to analyze the characteristics of the generated wastewater and its potential impact on roads, and evaluate the efficiency of its reuse. The total volume of treated wastewater produced is 11.88 m³/day, containing parameters such as pH, TSS, Cl⁻, and SO₄²⁻. Based on the water quality measurements, the treated wastewater meets the quality standards set by the Ministry of Environment and Forestry for pH and TSS, and by Government Regulation No. 22 of 2021 for chloride and sulfate. Therefore, the wastewater is considered suitable for road spraying. The efficiency of using treated wastewater for this purpose reaches 43% during the dry season and 86% during the rainy season.

Managing The Impact of Decreased in Quantity, Quality of Groundwater, and Increased Domestic Waste Due To The Ready-Mix Concreate Industry

Kuni Zukhrufal Izzah — 2025-07-12

The Ready-Mix Concrete Industry located in Kediri Regency is preparing UKL-UPL documents to meet the requirements of the Government Regulation of the Republic of Indonesia Number 22 of 2021 concerning the Implementation of Environmental Protection and Management through the Kediri Regency Environmental Agency. This study was conducted using the observation method on the impact sources of operational activities, utilizing secondary data from the industry's UKL-UPL documents. The impact caused includes a decrease in the quantity and quality of groundwater due to the fulfillment of industrial clean water needs amounting to 4,570 m³/day for domestic needs and 145 m³/day for other supporting activities sourced from groundwater, with wastewater generation amounting to 3,656 m³/day. Also, the waste generated amounts to 21.7 kg/day, which impacts the increase in domestic waste. Management efforts will be carried out in the form of processing and utilizing the generated waste in accordance with quality standards and regulations in force, with regular monitoring conducted in collaboration with laboratories and relevant ministries. This study can be used as a guideline for the community in preserving the environment and as a representation of policies in the Kediri Regency area.

Optimizing the Utilization of Egg Shell Waste for the Production of Liquid Organic Fertilizer in Trangsan Village, Gatak, Sukoharjo: Improving Welfare and Environmental Sustainability

Nita Kusuma Putri — 2025-07-12

The increasing volume of organic waste, including eggshells, poses significant environmental challenges. Trangsan Village, Sukoharjo, is one area with abundant eggshell waste due to poultry hatching activities. This study aims to optimize the utilization of eggshell waste by processing it into eco-friendly liquid organic fertilizer (LOF). Eggshells containing 97–98.5% calcium carbonate (CaCO₃) were processed into liquid fertilizer through fermentation using EM-4 bioactivators. The program involved stages such as public socialization, fertilizer-making simulation, laboratory testing, and dissemination of results to farmers. Laboratory results revealed the fertilizer contains 1.11% organic carbon (C-organic), 0.23% nitrogen, and 0.19% potassium. However, nitrogen and potassium levels require further optimization. Community socialization demonstrated high enthusiasm, particularly in repurposing household waste into valuable resources. This initiative offers economic opportunities and supports environmental sustainability by reducing organic waste and reliance on chemical fertilizers.

Coconut Shell Charcoal Adsorbent with Variations in Activation to Reduce BOD (Biochemical Oxygen Demand) and TSS (Total Suspended Solid) Levels in Liquid Tofu Waste

Nabilah Nur Azmi — 2025-07-12

Wastewater from tofu production conntains high concentrations of organic matter, particularly Biochemical Oxygen Demand (BOD) and Total Suspended Solids (TSS). Without proper treatment, this waste has the potential to pollute surrounding water bodies and harm aquatic ecosystems. This research explores the use of coconut shell charcoal as a natural adsorbent to reduce BOD and TSS levels in tofu wastewater. The charcoal was physically activated by heating it at 105°C for three different durations: 15, 60, and 180 minutes. This treatment aimed to improve its surface area and porosity, enhancing its adsorption capacity. Laboratory analysis showed a significant decrease in both BOD and TSS, with the highest efficiency observed at 180 minutes of activation. These findings suggest that coconut shell charcal, a widely available and underutilized material, can serve as an effective and environmentally friendly option for simple wastewater treatment at a local level.