Jurnal Purifikasi

STUDI KELAYAKAN APLIKASI ZEOLIT DALAM PENGOLAHAN AIR PAYAU MENJADI AIR BERSIH

Eka Prihatinningtyas — 2024-06-30

One of the brackish water treatments is adsorption. In this research, two kinds of zeolite were compared as adsorbents. Zeolite A is obtained through physic activation by heating at 600 oC. Modified zeolite using surfactant HDTMA-Br will produce Zeolite B. Both types of zeolite were characterized using SEM, XRD, and PSA. The results of the PSA analysis showed that Zeolite B had a higher surface area, volume, and pore size compared to Zeolite A. The activity of adsorption was measured based on the removal of salinity, turbidity, TDS, and conductivity at various adsorbent mass and adsorption times. The results showed that Zeolite A was able to reduce salinity by 15.38% in 30 minutes and a mass of 6 grams. Zeolite B as much as 4 grams is able to remove 17.31% salinity at the same time. The low ratio of Si/Al values causes the adsorption capacity to be weak. Produced water also does not comply with the requirement standards for clean water and drinking water..

IMPROVED TEMPERATURE STABILITY IN SEDIMENTATION TANK WITH VEGETATION CANOPY

Bowo Djoko Marsono — 2024-07-26

Naturally the water temperature is correlated with the density and viscosity. Changes in temperature due to sunlight affect processes in water treatment such as sedimentation and coagulation. The detrimental effect is the presence of density currents on the surface during the day, thereby reducing the efficiency of particle sedimentation. Vegetation Canopy can be applied in sedimentation tanks to cope with changes in temperature on the surface of the water mass. This method can be implemented by planting trees around the tank in addition to fabric fiberglass. Tall trees and canopies with large leaves will cover the surface area of the sedimentation tank so that changes in water temperature due to sunlight can be reduced. To apply this technique, submerged orifices and a net above the water surface are used at the outlet channel of the sedimentation basin.

KAJIAN FITOREMEDIASI AIR TANAH TERCEMAR LINDI TPA DENGAN KANDUNGAN LOGAM (STUDI KASUS: FITOREMEDIASI FE DAN BESI DI LAHAN BEKAS TPA KEPUTIH)

Desy Prastitianti — 2024-07-26

Landfills can be a source of groundwater pollution if they are not properly designed to reduce leachate pollution. Leachate produced by wastes is carried by rainwater through infiltration and by groundwater flow, which can cause contaminants to enter surrounding groundwater wells. The remediation of groundwater contaminated with iron by landfill leachate can be accomplished through phytoremediation. This literature review aims to investigate different plant species that have potential for phytoremediation of iron- contaminated groundwater at the TPA Keputih landfill site in Surabaya. Kayu Apu (Pistia stratiotes) was selected for the case study of remediation of iron contaminated groundwater at the TPA Keputih landfill site. Calculations show that on a household scale, 84 stems of Kayu Apu and a residence time of 7 days are required to remove excess Fe in groundwater to meet water quality standards

KAJIAN KEHILANGAN AIR PERUMDA DELTA TIRTA PADA DMA SHOJI LAND CABANG PORONG

Salsabila Hasna — 2024-07-26

The maximum allowable water loss, as defined by the Peraturan Menteri Pekerjaan Umum dan Perumahan Rakyat Republik Indonesia No 27/PRT/M/2016, is 20%. However, the Delta Tirta Regional Public Company has exceeded this limit, with a water loss of 32%. A study was conducted on the Shoji Land Porong Branch District Meter Area (DMA) in July 2023, which revealed a water loss of 56%. The objective of this study is to quantify the financial losses attributable to water loss and to propose improvement solutions based on an analysis of the underlying causes of water loss, as reflected in the water balance. The results of the study indicated that the percentage of water loss in October was 51%, with a percentage of physical water loss of 31.4% and 19.4% for non-physical water loss. The mean financial loss resulting from water loss between August and October was Rp. 31,897,659 per month. Consequently, a design based on the causes of water loss namely, water leakage, inaccuracy in the zoning meter, and inaccuracy in the house connection meteris imperative. To address this issue, a strategy of replacing and resetting water meters, as well as pipe repair, was implemented based on the October water balance data.

THE EFFECT OF SEPTAGE SLUDGE AND EM4 ADDITION IN A DUAL-CHAMBER MICROBIAL FUEL CELL TREATING BATIK WASTEWATEREFFECT OF ADDITION OF IPLT SLUDGE AND EFFECTIVE MICROORGANISMS (EM4) IN DUAL CHAMBER MICROBIAL FUEL CELL TO TREAT BATIK INDUSTRY WASTEWATER

Yanuar Syaefulloh — 2024-07-26

The Indonesian Ministry of Industry stated that the production of batik cloth in 2017 reached an average of 500 million meters/year, which is equivalent to 25 million m³/year of water. With a large water demand in the production process, the batik industry can cause water pollution in waterbodies. The Dual-Chamber Microbial Fuel Cell (DCMFC) system can reduce organic pollutant levels in wastewater and produce electrical energy simultaneously. The purpose of this research was to study the effect of the addition of septage sludge and EM4 consortium on the power density produced by the DCMFC system and to study the effect of pH differences in the DCMFC system on the removal of COD. The effect of variations in the addition of sewage treatment plant sludge and EM4 on the production of electrical energy obtained results that are too large a difference. This result was attributed to several factors, including electric current, electric voltage, microorganism growth, and pH. The maximum power density in the EM4 variation was 297.61 mW/m², the power density in the septage sludge variation was 287,26 mW/m², and the control reactor power density was 185.99 mW/m². The optimal pH for septage sludge and EM4 to degrade COD is about 7. In the DCMFC systems with EM4, MLSS values increased steadily from 1500 mg/L to 1800 mg/L regardless of pH. In the systems with septage sludge showed pH-dependent effects on MLSS (in the range of 1250-2400 mg/L), with pH 7 being detrimental. Biofilm formation on the anode increased over time in EM4 systems across all pH conditions, with notable growth in septage sludge systems observed at pH 6. The COD removal of the septage sludge and EM4 was highest at 33.83 and 40.76%, respectively.