Analysis of the Treatment of Synthetic Bathing Waters and Their Effects on Seedlings

Synthetically produced bathing waters and their effect on seedlings were analysed in our research. The artificially produced bath waters were treated in different ways. Primarily, simple filtration was performed through a layer of silica sand. During the tests, the obtained greywater was investigated before and after the treatment with the help of various water quality parameters. Irrigation was set as the goal of recycling, and germination experiments were performed on mustard seeds. In these experiments, the synthetically generated treated and untreated bath water was used as irrigation water. Considering the results obtained during the germination, it can be said that the treatment is necessary in any case. Based on the results, it was shown that the filtration was not sufficient, so coagulation was used as an additional treatment method, for which we determined the optimal amount of treatment agent as a starting step.

A Study on Impact of Coronavirus (COVID-19) Outbreak and Countermeasures on Water Consumption in the Small-Medium Sized City

Objectives : The objective of this research is to evaluate how the COVID-19 pandemic spread and prevention actions are affecting water consumption pattern in the domestic small-medium sized city. Also, the main contribution is the assessment of water consumption during a pandemic, proving information for management of water supply system in order to be resilient in challenging situation for the community.Methods : In this study, data on the water consumption by administrative subdivisions and uses were obtained from January 2018 to December 2020. The water consumption can be divided into the uses for household, office, business and public bath. Data were analyzed in a time series from 2018 to December 2020 in 35 administrative subdivisions.Results and Discussion : As a result of analyzing the consumption pattern of tap water by use in domestic J_city, the consumption of household water tends to increase slightly, but it is found that the trend of change in office, business and public bath water is not significant.Conclusion : It can be seen that the consumption of households in 2020 is slightly higher than in 2018 and 2019, and the consumption of water for business, business and public baths has decreased. Probably, as homework and non-face-to-face classes of students increase, consumption of household water increases and consumption of business and business water decreases.

Aplikasi Lucutan Plasma Corona Dalam Pengolahan Limbah Cair Kelapa Sawit

ABSTRACT The green revolution in the field of palm oil farming not only contributes to processed products but also produces large-capacity waste originating from its processing starting from the sterilization process, water from the clarification process, hydro cyclone (clay bath) water, and factory washing water. Palm oil mill effluent (LCPKS) contains dissolved and suspended solids in the form of colloids and oil residues with high BOD and COD. If this liquid waste is discharged directly into the water, it can pollute the environment. Some will settle, decompose slowly, consume dissolved dcxdcoxygen, cause turbidity, emit a sharp odor and can damage the aquatic ecosystem. To improve the parameters in the LCPKS so that it is feasible to flow to water bodies or the environment, an LCPKS treatment experiment test is performed by applying corona discharge with variations in voltage and length of time, then comparing the effect on parameters such as BOD, COD, pH and TDS on LCPKS before treatment and after treatment. From the treatment process using a corona discharge application with variations in voltage and time able to reduce BOD levels up to 35%, COD 36%, increase in TDS reached 71.56% and decreased pH by 4.11%.Key words: Palm oil mill effluent (LCPKS), Corona discharge application (Corona Discharge Treatment), COD, BOD, TDS, pH