The dominance of the use of synthetic detergents is tends to be high, especially in RT 54 neighborhood Karang Joang Village, North Balikpapan. The use of packaged detergent that produce B3 waste is still unknown by the residents. In addition, the absence of waste management and particular disposal systems also contribute as a negative impact on the environment. The training and socialization activities for making environmentally friendly detergents were carried out to provide information about the basic ingredients for eco-friendly detergent using Methyl Ester Sulfonate (MES) as a vegetable surfactant, as well as to encourage participants to be able to make detergents independently. The method used in this activity is demonstrations by explaining the stages of manufacture. The process of making detergent is carried out through the preparation stage, the making process and recording in video, using simple tools and materials. Video demonstrations were published on social media so that the dissemination of information was wider than the initial target of the activity. Through this activity, the results obtained were that the stages of making detergents that were not too complicated, so it could be easily understood, especially with a video guide that could be accessed at any time.
Leachate is a liquid from the decomposition of waste material in landfills. Leachate can be dangerous if it flows into the ground, consequently making pollution on soil and groundwater. Due to its harmful to the environment, therefore treatment of the leachate is needed. The increase in dissolved oxygen is one of the aerobic treatment processes needed for leachate. In this study, the method of increasing dissolved oxygen (DO) uses a fine bubble diffuser. According to the problem, the purpose of this study is to determine the effect of using a fine bubble diffuser in leachate water treatment by calculating the amount of DO and the oxygen transfer coefficient (KLa) that occurs. In this study, using variations of diameter nozzle diffuser 1.5 mm, 2 mm and 3 mm. The results from this study are the DO concentration to increase based on aeration time. DO concentration with maximum aeration time of 20 minutes at nozzle diameter 1,5 mm, 2 mm, 3 mm, respectively are 1.4 mg/l; 0.7 mg/l; 0.8 mg/l. The results of KLa at nozzle diameter 1.5 mm, 2 mm, 3 mm sequentially are 0.65 / hour; 0.34 / hour; 0.34 / hour. These results indicate that the KLa value decreased. In conclusion, decreased KLa indicates that the oxygen condition in leachate approaches saturated conditions or in other words that the DO concentration is relatively increased with time during aeration.
Balikpapan bay has an important and strategic role, such as a buffer for sustainability of the estuary function as the Balikpapan seaport. In Balikpapan esuary watershed there are large and small rivers, including Somber River. Settlements and industries around the river banks have caused a decrease of river water quality, especially activities that place pollutant loads (waste) on the river bodies. This research is focused on physical and chemical parameters, including Total Dissolved Solid (TDS), temperature, pH, and DO (Dissolved Oxygen).Water quality research was conducted by dividing the river into 7 measurment points. The distribution of measurement points was based on water quality considerations that represent upstream, middle, and downstream water quality, as well as considering easy access. Water samples at each mesurment point ware collected at three different depths (vertically). Concentrations of several parameters that have been obtained were then analyzed using the Pollution Index method (Pollution Index) which is used to determine relative pollutant levels to the allowed water quality parameters. The testing procedure by pollution index refers to procedure poured in the Decree of the State Minister for the Environment No. 115 in 2003 concerning of Determining Guidelines of Water Quality Status. Based on the field measurments, an average value for temperatures obtained ranging from 30.0 - 32.1 ° C, TDS values 4270 mg / L - 10000 mg / L, DO ranges between 1.8 mg / L - 3.1 mg / L, and pH values between 6.6 - 7.1. From the calculation and data analisys of physical and chemical parameters, the research can be concluded that the location of measurement point 1 shows water quality status being lightly polluted, while point 2,3,4,5,6, and 7 shows water quality status being moderately polluted. Keywords: Water quality, estuary, Somber river, pollution index
Flooding can be defined as the submergence of a place because a high overflow of water exceeds the water capacity of an area. In Balikpapan, many areas are still inundated during heavy rains. Especially in Pondok Karya Agung Housing RT.18 Sungai Nangka Village, flooding is a major problem that occurs in the area. This community service program aims to increase community knowledge about flood prevention at Pondok Karya Agung Housing RT.18 Sungai Nangka Village. Methods of implementation in these services socialized and practiced planting biopore infiltration holes. The implementation phase includes preparation, implementation, and evaluation of increasing participants' understanding of making biopore infiltration holes. This community service program was attended by 25 participants. There are 24 points for biopore locations. These activities will be held for two days. The results show that understanding and interest in implementing increased after the socialization and practice of installing biopore infiltration holes.
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