scholarly journals Effectiveness of Liquid Waste Treatment of RSUD Kefamenanu Through Filtration Process

2021 ◽  
Vol 12 (2) ◽  
pp. 43-47
Author(s):  
Yanti Benyamin ◽  
Suwari Suwari ◽  
Dodi Darmakusuma
Keyword(s):  
Waste Treatment ◽  
Liquid Waste ◽  
Filtration Process

scholarly journals Studi Kemampuan Adsorpsi Ion Logam Cr6+ oleh Tanah Vulkanik “Studi Kasus Wilayah Industri Penyamakan Kulit, Garut”

2020 ◽  
Vol 21 (1) ◽  
pp. 125-130
Author(s):  
Nyoman Sumawijaya ◽  
Asep Mulyono ◽  
Anna Fadliah Rusydi
Keyword(s):  
Adsorption Capacity ◽  
Waste Treatment ◽  
Liquid Waste ◽  
Freundlich Isotherm ◽  
Organic Content ◽  
Maximum Adsorption Capacity ◽  
Soil Media ◽  
Pass Through ◽  
Soil Organic Content ◽  
The Impact

ABSTRACTThe leather tanning industry in Sukaregang, Garut Regency, produces liquid waste containing Chromium and is discharged directly into the Ciwalen River without a waste treatment process. The content of Cr6+ as metal ions in the waste can also contaminating groundwater. The movement of Cr6+ will pass through the soil media before entering to the groundwater wells. The capability of the soil to adsorb the contaminant will reduce the impact on groundwater. The purpose of this study was to determine the ability of the soil in adsorbing and inhibiting the movement of Cr6+ into groundwater. The study was carried out at Sukaregang, Garut Regency and conducting adsorption experiments with a batch system. The analysis was carried out using the Langmuir and Freundlich isotherm model. The experimental results showed that Cr6+ adsorbed ranged from 38% to 57% of the initial concentration. The results from Langmuir Isotherm were: the distribution coefficient (Kads) was 0.45 L/mg and the maximum adsorption capacity (qm) was 2.44 mg/100g sorbent with R2 = 0.959 and Freundlich Isotherm was: qm was 2,86 mg/100g sorbent and Kads was 0,35 L/mg with R2 = 0,860. This large adsorption capacity is caused by soil texture and soil organic content. The soil in Sukaregang tanning industries has a high adsorption capacity towards Cr6+ contaminants.Keywords: adsorption, chromium, Cr6+, contaminant, volcanic soil, GarutABSTRAKIndustri penyamakan kulit di wilayah Sukaregang, Kabupaten Garut, menghasilkan limbah cair yang mengandung Kromium dan dibuang ke Sungai Ciwalen tanpa proses pengolahan limbah. Kandungan ion logam Cr6+ pada limbah dapat mencemari air tanah. Pergerakan ion logam Cr6+ akan melalui media tanah sebelum memasuki sumur-sumur penduduk. Beberapa jenis tanah mempunyai kemampuan untuk mengadsorpsi ion pencemar sehingga tidak semua limbah yang meresap ke dalam tanah mencemari air tanah. Tujuan dari penelitian ini adalah untuk mengetahui peranan tanah dalam menghambat pergerakan ion logam Cr6+ ke dalam air tanah. Penelitian dilaksanakan dengan pengambilan sampel tanah di daerah Sukaregang, Garut, dan melakukan percobaan adsorpsi dengan sistem batch. Sementara analisis dilakukan dengan menggunakan model isotherm Langmuir dan Freundlich. Hasil percobaan menunjukkan konsentrasi Cr6+ yang teradsorpsi berkisar 38 – 57 % dari konsentrasi awal. Kads sebesar 0,45 L/mg dan qm sebesar 2,44 mg/100g tanah dengan nilai R2 = 0,959 menggunakan isoterm Langmuir dan isoterm Freundlich memberikan nilai qm sebesar 2,86 mg/100 g sorbent dan Kads sebesar 0,35 L/mg dengan R2 = 0,860. Tingginya daya adsorpsi ini disebabkan oleh tekstur tanah dan kandungan bahan organik. Tanah di wilayah penelitian memiliki daya adsorpsi yang besar terhadap kontaminan Cr6+.Kata kunci: adsorpsi, kromium, Cr6+, kontaminan, tanah vulkanik, Garut

scholarly journals Characterization of odours emitted by liquid waste treatment plants (LWTPs)

2016 ◽  
Vol 18 (4) ◽  
pp. 721-727 ◽  
Keyword(s):  
Waste Treatment ◽  
Liquid Waste ◽  
Management Tool ◽  
Complex Nature ◽  
Atmospheric Conditions ◽  
Exposed Population ◽  
Waste Treatment Plants ◽  
Odour Emissions ◽  
Definition Of

<p>Odour emissions from liquid waste treatment plants (LWTPs) generally cause significant effects on the environment in terms of nuisance to exposed population. The particular and complex nature of the mixture of the volatile substances, its variability in time and the strong influence of the atmospheric conditions, are the elements that delayed their regulation and relative management.</p> <p>Limited data are available in the technical and scientific literature, regarding the odour emissions characterization from liquid waste treatment plants. Moreover there isn’t a common strategy from the different European Countries in the regulation of their emissions.</p> <p>Different methods can be used to measure odour emissions from environmental engineering plants, and currently, in Europe, the most used techniques for odour emissions characterization and quantification is the dynamic olfactometry, according to EN 13725:2003.</p> <p>The aim of this study is the characterization of the odour emissions from different liquid waste treatment plants (LWTPs), trough a case study of two large real LWTPs, in order to identify the principal odour sources and to define their related odour emissions.</p> <p>Odour Concentration Index (OCI) is proposed as a useful and simply odour management tool for the identification of the priority actions necessary to identify and control the main odorous sources. Relationship between the measured odour emissions and the types of treated liquid waste (identified in terms of EWC code, COD and NH4<sup>+</sup>) is also discussed.</p> <p>Results show that the influent collection tank is the source with the highest detected odour emissions. OCI results are useful for the definition of a clear priority action for odour control, similar for both investigated plants. Between the characterized types of liquid waste treated by LWTPs the leachate (EWC 190703) show the maximum odour emissions.</p>

scholarly journals Zinc Removal from ZnO Industrial Wastewater by Hydroxide Precipitation and Coagulation Methods: The Role of pH and Coagulant Dose

2020 ◽  
Vol 11 (2) ◽  
pp. 35-42
Author(s):  
Ratnawati Ratnawati
Keyword(s):  
Reaction Time ◽  
Industrial Wastewater ◽  
Waste Treatment ◽  
Liquid Waste ◽  
Reaction Times ◽  
Quality Standards ◽  
Government Regulations ◽  
Zinc Removal ◽  
Zn Concentration

Liquid waste from the ZnO industry must be treated to meet the quality standards of wastewater into water bodies, according to the Minister of Environment Regulations No.5, 2014. It still contains 79 mg/L of Zn metal, cloudy with turbidity above 500 NTU, and COD value around 222 mg/L. This study aims to determine the effect of pH on reducing Zn metal and the coagulant dose to minimize turbidity and COD in liquid waste produced by the ZnO factory in Depok, West Java. The waste treatment has been carried out by adding alkaline to neutralize the acid conditions in the equalization basin. However, the results have not met the requirements. It is necessary to vary the pH (8.5; 9.0; 9.5; 10.0 and 10.5) to precipitate of Zn optimally, modify the dose of coagulants (50; 100 and 150 mg/L) and reaction times (10; 15 and 20 minutes) to reduce its turbidity and COD concentration. The best results were obtained at a pH of 9.5 with a coagulant dose of 50 mg/L and a reaction time of 10 minutes. This condition can reduce Zn concentration (79 to 3.71 mg/L), turbidity (557 to 1.42 NTU), COD (222 to 68 mg/L) with a removal efficiency of 95.3%; 99.7%; and 69.4% respectively. These values have met the standard requirements according to government regulations.

scholarly journals Processing Solid Waste of Animal Beef using Bioactivators in Effort to Reduce Environmental Pollution

2021 ◽  
Vol 5 (1) ◽  
pp. 174-184
Author(s):  
Titik Mariyati ◽  
Indasah Indasah
Keyword(s):  
Environmental Pollution ◽  
Nitrogen Content ◽  
Solid Waste ◽  
Waste Treatment ◽  
Skin Diseases ◽  
Liquid Waste ◽  
Organic Fertilizers ◽  
Chemical Laboratory ◽  
Composting Process ◽  
Phosphorus Levels

Cattle waste both in the form of solid and liquid waste that is produced every day if left alone without proper waste treatment, it can cause environmental pollution, namely air, water, and soil pollution. The environment becomes squalid and attracts various animals such as flies and dogs which can carry various diseases such as deare, typhoid, cholera and skin diseases which can spread quickly and smell bad. One of the efforts to overcome environmental pollution around cattle is to carry out a composting process using cow rumen bioactivator. This study aims: (1) to find out whether cow rumen bioactivator can reduce the unpleasant odor caused by cattle waste, (2) find out whether cow rumen bioactivator can accelerate the composting process, (3) determine the effect of bioactivator volume on compost quality, namely nitrogen content. (N-total), Phosphorus levels, and Potassium levels. This study uses qualitative analysis to test odors (H2S gas, CO2 gas, NH3 gas and CH4 gas) which was carried out at the CHEMICAL Laboratory of SMK Kesehatan Bhakti Indonesia Medika Kediri, and quantitative analysis to test Nitrogen levels using a Kjeldahl flask, Phosphorus levels with a visible spectrophotometer. , Potassium levels with AAS conducted at the Laboratory of PTPN X Jengkol Plosoklaten Kediri. This study showed: (1) after the composting process, cattle solid waste did not smell, (2) the composting process took 30 days, (3) the addition of various bioactivators (25 ml, 50 ml, 75 ml, and 100 ml), volume 50 ml is the optimal volume in the composting process with 3 kg of cattle solid waste. From the decomposition results, total nitrogen content was 0.592%, phosphorus content was 0.27%, and potassium content was 0.538%. These levels meet the Quality Standards for organic fertilizers and soil enhancers according to the Regulation of the Minister of Agriculture no. 2/Pert./HK.060/2/2006.

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