Reduksi pencemar limbah cair industri tahu dengan tumbuhan melati air (Echinodorus palaefolius) dalam sistem kombinasi constructed wetland dan filtrasi Reduction of the pollution parameters in tofu industry wastewater by water jasmine plant (Echinodorus palaefolius) in constructed wetland and filtration combination system
Some of tofu industries in Jambi City are household industries, where the wastewater from processing unit was disposed of into the environment without treatment. This study aims to analyze the effect of detention time and the effectiveness of decreasing COD concentration and pH neutralization on wastewater of tofu industry using a sub surface flow - wetlands (SSF-wetland) system combined with a filtration system. The plant selected in this study was water jasmine (Echinodorus palaefolius). Variables of waste water detention time in the reactor are 5, 7, 9, 11, 13 and 15 days. Decreasing of COD concentration and increasing of pH were analyzed by comparing influent and effluent from wastewater samples, also the effect of detention time on the effectiveness of parameter reducing on each system. The water quality standard refers to the regulation of the Minister of Environment and Forestry Number 68 Year 2016. The results showed excellent performance from a combination of the two systems where an initial pH with range of 3 increase to pH 6.5-7. The efficiency of reducing COD concentration reached 47-94% during the 15-day detention time with concentration value 125 mg / l, close to the standard value 100 mg / l. The residence time has more significant effect on the reduction of COD in the SSF-Wetland system than the filtration system. Whereas in pH parameters, the residence time does not have a significant effect on both systems.
Clean water as basic need produced by the Regional Water Company (PDAM) and the by-product of this production was in the form of sludge. PDAM sludge contain Aluminium in the form of Al (OH)3 with the potential pollution if thrown into environment. This research aims to determine the efficiency of removal of Al metal on PDAM sludge through phytoremediation by using jasmine water plants and to determine the absorption of Al metal that accumulates in the roots of water jasmine plants in phytoremediation I (without media) and phytoremediation II (with gravel and humus soil). Sludge sample was carried out directly on the outlet sludge drying bed PDAM Water Treatment Plant (IPA) Tanjung Sari. The phytoremediation process is then carried out to reducted Al metal content in the sludge by using water jasmine plants. Furthermore, Al metal concentrations were analyzed at 3, 5, 7, 9 and 11 days of contact and analysis of Al metal absorption on the roots of jasmine water plants was done after phytoremediation process in days-11. The result showed at the contact time 3, 5, 7, 9, and 11 day, the efficiency of Al metal concentration on the phytoremediation I in a sequence were 46%; 62%; 72%; 80%; and 83%, while in phytoremediation II were 50%; 67%; 75%; 81%; and 86%. The concentration of Al metal absorption on the roots of jasmine plant water at phytoremediation I and phytoremediation II are 898,10 mg/l dan 302,42 mg/l. The high absorption in the phytoremediation I due to the absence of planting media so the metal occurs more optimal but they really experienced low power regeneration. While in phytoremediation II which has a growing media, formed a rizosfer zone which is rich in oxygen and microorganism so that the plant having a higher level of regeneration.
The palm oil processing industry in which produces Crude Palm Oil (CPO) generally uses boilers. The combustion process with a boiler will produce pollutants in the form of particulates (dust), and gases such as NO2 and SO2. There are two palm oil processing industries in Muaro Jambi District that use different fuels: coal and oil palm shell. The purpose of this study was to determine the ratio of SO2, NO2 and particulate concentration in industries that use coal and oil palm shell. Primary data taken in the form of concentrations of SO2, NO2 and particulates also meteorological data. Secondary data taken in the form of map area, height and diameter of the boiler, and production capacity. Sampling time is in the morning, afternoon and evening which is repeated in 3 times. The results showed that the comparison of NO2 and SO2 concentrations produced from coal-fired boilers was higher than shell-fired boilers, but both were still below the quality standard. Particulate concentrations in the palm oil processing industry that use coal-fired boilers are above the quality standard, while shell-fired boilers still meet quality standards.
Increasing urban population growth has causing unbalanced development which has a negative impact on green open space. Jambi City has 14.92 ha of green open space. When compared with the area of Jambi City, it is found that green open space is only 8.76%. One of the impacts of reducing green open space is the increase in air temperature in Jambi City every year. This study aims to analyze the effect of vegetation density on green open space on light intensity and air temperature in Jambi City. The research case studies were in Kota Baru, Telanaipura, and Pasar Jambi Districts which selected based on zoning of green open space covered with a density level of rarely, medium and dense (Regulation of the Director of Planning of the Ministry of Forestry Number 3/2014). The effect of vegetation density on light intensity and air temperature was statistically analyzed using Pearson correlation. The results showed that vegetation density in green open spaces had a significant effect on light intensity with a strong correlation value of 0.704. Vegetation density also had a significant effect on air temperature with a moderate correlation value of 0.575.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.