International Journal of Environment, Engineering and Education
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Water Pollution Index: Measurement of Shallow Well Water Quality in Urban Areas
Full text linkDetermination of water quality status based on the pollution index method. Water said to polluted if it cannot use according to its standard designation. The purpose of this research is to identify and find out the level of pollution contained in shallow well water used by communities in urban areas. Water quality index measurements using the Storet Method. This study uses ten samples with techniques Purposive random sampling with well water sources used by people in Makassar, especially in Untia Sub-District, Makassar, South Sulawesi. The number of samples used was 15 water samples taken each week with a total of 10 shallow well water sample points. The parameters measured in the study are Iron (Fe), Manganese (Mn), Total Coliforms, Total Dissolved Solids (TDS). The results of the study showed that the condition of shallow well water quality classified in category D, which heavily polluted which means it not recommended to use before filtering. The increase in parameters that have exceeded the maximum quality standard comes from natural sources and high domestic waste from community activities. Water pollution is a condition in which a water reservoir changes due to human activity — the change caused by the entry of substances that should not be in the water
The Process of Developing Gelatinization and Saccharification with Variations in Temperature and Period of Glucose Sago Material
Full text linkInitial temperature variations carried out for the gelatinization stage and sampling every six hours during the saccharification process, which lasted 72 hours. The liquefaction process using the α-amylase enzyme and then proceeds to the saccharification process with the glucoamylase enzyme. The raw material used is sago flour, which has relatively high starch content. The method in this research 1) Sample preparation; 2) Gelatinization Process; 3) Liquefaction Process; 4) Saccharification Process; 5) Reducing Sugar Analysis; 6) Sweetness Level Analysis; 7) Dextrose Equivalent Analysis; 8) Statistical Analysis. The result for analysis obtained the average value of reducing sugar at the use of 121 degrees Celsius gelatinization temperature is 108.33 g/L higher than the value of reducing sugar at the use of 87 degrees Celsius gelatinization temperature is 94.56 g/L. The analysis obtained the average value of sweetness level at the use of 121 degrees Celsius gelatinization temperature is 23.22 degrees Brix higher than the value of sweetness level at the use of 87 degrees Celsius gelatinization temperature is 20.82 degrees Brix. The analysis obtained the average value of dextrose equivalent at the use of 121 degrees Celsius gelatinization temperature is 54,17 percent higher than the value of dextrose equivalent at the use of 87 degrees Celsius gelatinization temperature is 47.28 percent. The high potential of glucose syrup made from sago expected to motivate the development of home industries that use glucose syrup in various food productions
The Consequences of Illegal Mining in the Environment: Perspectives Behavioral, Knowledge and Attitude
Full text linkEnvironmental problems can overcome by changing the mental attitude of humans as environmental destroyers to humans who are aware of their environment. The focus in research is to find out and then interpret the results obtained related to the presence or absence of influence between the level of knowledge and attitudes of traditional miners on behavior. The number of samples used was 212 respondents spread over traditional mining areas of the community. Data is obtained from surveys using questionnaire instruments and interviews with traditional miners. The data is then analyzed Structural Equation Model (SEM) using IBM AMOS 23. The results of validation and reliability and goodness of fit (GOF) indicate that the model is feasible and fit. The results of the analysis show that there is a significant impact between the variables of knowledge and attitudes towards the behavior of the mining community. The condition of enough knowledge is not able to change people's behavior to manage the environment. The results obtained are the same as attitudinal variables that show contra to the environment. All ways are done to get profits without seeing the consequences. The attitude of the government must be more assertive in controlling illegal mining that has damaged the surrounding environment. Humans who are aware of their environment are humans who already understand and apply attitudes and behaviors that care about the environment and apply the principles of ecology and environmental ethics