scholarly journals PENJERNIHAN AIR SUMUR MENUJU AIR LAYAK MINUM DENGAN METODA LAPISAN MULTI MEDIA ( LMM )

2019 ◽  
Vol 10 (1) ◽  
pp. 9
Author(s):  
Neneng Swesty ◽  
Rahmiana Zein ◽  
Z. Zilfa
Keyword(s):  
Flow Rate ◽  
Waste Treatment ◽  
Liquid Waste ◽  
Treatment Method ◽  
Quality Standard ◽  
Process Efficiency ◽  
Rate Variation ◽  
Aeration Efficiency ◽  
Main Medium ◽  
Aeration Process

The Multi Soil layering (MSL) system is a liquid waste treatment method with the use of soil as the main medium and the organic material formed in brick and arranged in layers with a homogeneous zeolite layer. The MSL system is made of acrylic (50 x 15 x 50) cm containing a brick (4 x 9 x 15) cm and (4 x 5 x 15) cm of volcanic soil mixture as the main medium mixed with charcoal, rice husk, and iron powder (70 : 10 : 10 : 5)%, permiable layer is used zeolite (2-3) mm. The sample came from the well water of one of villager at Jati, Padang. Efficiency of SML system for aeration process on turbidity parameter with flow rate variation of 2, 4, 6, 8 mL/min reach 99,8 %, for non aeration process efficiency of turbidity decrease 88,14 %. While for the flow rate of 10, 20, 40, 80 mL/min, the efficiency of decrease for aeration at parameters Mn 66,44 %, nitrite 59,74 %, nitrate 58,34 %, turbidity 54,63 %, while in non aeration efficiency decrease turbidity reach 44,04 %, Mn 47,26 %, nitrite 49,74 %, nitrate 45,57 %. Of all efficiency values decreasing all parameters already complied drinking water quality standard according to Permenkes RI No. 492/Menkes/Per/IV/2010.

scholarly journals Pengelolaan Limbah pada Pabrik Pengolahan Ikan di PT. Kelola Mina Laut Gresik [Waste Treatment at Fish Processing Company in Kelola Mina Laut Incorporated Gresik East Java Province]

2019 ◽  
Vol 3 (1) ◽  
pp. 123
Author(s):  
Putri Desi Wulansari
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Waste Treatment ◽  
Treatment Plant ◽  
Liquid Waste ◽  
Treatment Method ◽  
Quality Standard ◽  
Literature Study ◽  
Negative Effects ◽  
Water Stream

AbstractIndustrial waste comes from the end of product process as a solid or liquid waste. Avoiding the negative effects of industrial waste, each industry must complete their company with wastewater treatment plant. This Field Job Practice was done at Kelola Mina Laut, Inc., located in Randu Agung Village, Kebomas District, Gresik th thResidence, East Java Province on August 4 – September 13 as a mean to observe, learn and to know Kelola Mina Laut, Inc. wastewater treatment method. Work method which used in Field Job Practice was descriptive method with data collection technique, active participation, interview and literature study. The wastewater treatment plant of Kelola Mina Laut, Inc. consists of one collector batch unit, two aeration batch units, one sedimentation batch unit, and one contol batch unit. Before loosing the effluent to the water stream, wastewater passes through the control batch to know about the wastewater quality. After passing through the treatments, wastewater that loosing upon the environment will have a good quality and appropriate with Environment Quality Standard. 

scholarly journals Pendekatan Aplikasi DEWATS Dalam Manajemen Limbah Cair Rumah Sakit

2017 ◽  
Vol 17 (2) ◽  
Author(s):  
Arief Rahman Hakim, Baiq Dina Hardianti
Keyword(s):  
Waste Water ◽  
Coming Out ◽  
Waste Treatment ◽  
Sewage Treatment ◽  
Treatment Plant ◽  
Liquid Waste ◽  
Quality Standard ◽  
Literature Study ◽  
Standard Quality ◽  
Hospital Sewage

Abstrak Artikel ini menggunakan metode studi literatur dari berbagai artikel ilmiah. Hasil kajian menunjukkan upaya pengelolaan untuk mencegah terjadinya pencemaran air yang berasal dari limbah cair diperlukan adanya pengolahan limbah, dimana air buangan yang keluar dari tempat pengolahan limbah tersebut diharapkan mutunya sudah memenuhi syarat baku mutu limbah yang telah ditentukan. Sistem pengolahan limbah cair rumah sakit menggunakan sistem DEWATS. Limbah padat dan limbah berbahaya lainnaya dikelola oleh pihak ke 3, sehingga focus pengamatan kami adalah pada limbah cair. Pengolahan limbah menurut sistem DEWATS disetiap Rumah Sakit termasuk system yang baik dan murah bagi pengoperasiannya. Hasil pengolahan limbah cair dengan pendekatan system DEWATS tersebut menunjukkan bahwa BOD 7,6 Mg/L dari baku mutu maksimal 30 Mg/L, COD 21,7 Mg/L dar baku mutu 30 Mg/L, dan NH3  0,0730 Mg/L dari baku mutu 0,1 Mg/L, dan Koliform <1,8 dari baku mutu maksimal 5.000 jmlh/100ml. dengan demikian pendekatan aplikasi system DEWATS dalam pengelolaan limbah cair sangat efektif.Kata kunci : Pengolahan Limbah, Limbah Cair, DEWATS Abstract                This article uses literature study methods from various scientific articles. The results of the study indicate that management efforts to prevent water pollution from waste water are needed for waste treatment, where the waste water coming out from the waste treatment plant is expected to meet the quality standards of waste that have been determined. Hospital sewage treatment system using DEWATS system. Solid waste and other hazardous wastes are managed by third parties, so our focus is on liquid waste. Waste treatment according to DEWATS system in every Hospital including good and cheap system for its operation. The result of liquid waste treatment with DEWATS system approach shows that BOD 7.6 Mg / L from the standard of 30 Mg / L maximum, COD 21,7 Mg / L from standard of 30 Mg / L and NH3 0,0730 Mg / L of the standard quality of 0.1 Mg / L, and Koliform <1.8 of the maximum quality standard of 5,000 jmlh / 100ml. thus DEWATS system application approach in liquid waste management is very effective. Keywords: Waste Treatment, Liquid Waste, DEWATS 

scholarly journals Analysis Of The Environmental And Health Impacts Of The Area Affected By Tofu Liquid Waste In The Tofu X Home Industry In Pangkalan Kerinci Barat Village In 2020

2021 ◽  
Vol 1 (2) ◽  
pp. 353-367
Author(s):  
Ummi Khomarisah ◽  
Hastuti Marlina ◽  
M. Kamali Zaman
Keyword(s):  
Impact Analysis ◽  
Waste Treatment ◽  
Treatment Plant ◽  
Liquid Waste ◽  
Health Impact ◽  
Quality Standard ◽  
The Government ◽  
Pungent Odor ◽  
Health Impact Analysis ◽  
Depth Interviews

Home Industry Tofu X Established in 2002 and this business has existed from generation to generation until now. Tofu is a food made from fermented soybeans and extracted the juice. In general, the process of making tofu includes soaking soybeans for several hours, milling soybeans, boiling the results of milled soybeans, filtering, clumping soybean slurry using vinegar, molding and cutting. In the tofu industrial wastewater, there are organic materials in the form of 40-60% protein, 25-50% carbohydrates and 10% fat. If it is increasing, the volume will increase. The purpose of this study is to determine the Environmental and Health Impact Analysis of the Affected Areas of Tofu Liquid Waste in the Home Industry Tofu X Pangkalan Kerinci Barat Urban Village in 2020. This type of research is qualitative analytic by conducting in-depth interviews and direct observation. as well as laboratory tests for parameters BOD, COD and DO. The result of this research is that the waste treatment process has not been implemented in accordance with KepMenLH No. 51 of 1995 concerning the quality standard of liquid waste for tofu home industry. So that the resulting tofu wastewater is discharged directly into the pipelines leading to the river with BOD, COD and DO content which have not met the water quality standards set by the government PP No. 82 of 2001 and causing the river to be polluted, emitting a pungent odor and disturbing the comfort of the surrounding community. So a wastewater treatment plant (IPAL) is needed to treat water before it is discharged into the waters.

scholarly journals Effectiveness of Subsurface Flow-Wetlands to Reducing TSS Levels and Stabilizing pH in Tofu Liquid Waste

2021 ◽  
Vol 21 (1) ◽  
pp. 15
Author(s):  
Endang Srilestari ◽  
Anita Munawwaroh
Keyword(s):  
Water Hyacinth ◽  
Waste Treatment ◽  
Lemna Minor ◽  
Subsurface Flow ◽  
Liquid Waste ◽  
Quality Standard ◽  
Treatment Stage ◽  
Water Plants ◽  
One Way Anova ◽  
Manufacturing Stage

Small and medium industries are experiencing growth every year. The home industry of tofu production is one of the small and medium industries that continues to grow and develop. However, there is a problem if the tofu production waste is disposed of directly into the waters, it will cause pollution due to the deposition of organic material. The research objective was to analyze the subsurface flow-wetlands with plants namely water hyacinth, apu wood and lemna minor to reducing TSS levels and stabilizing pH. This research an experimental with treatments including SSF-Wetlands without water plants (A1), SSF-Wetlands with water hyacinth (A2), SSF-Wetlands with apu wood (A3), SSF-Wetlands with lemna minor (A4) and SSF-Wetlands with water hyacinth, and apu wood (A5). The stages of this research are the sampling stage, the SSF-Wetlands manufacturing stage, the waste treatment stage and the pH and TSS testing stages. Data were analyzed using one-way ANOVA (SPSS 20). The results showed that the liquid waste of tofu in the initial sample was acidic, namely 3.94 and the TSS level was 858 mg / L. The pH condition of the waste after processing by the quality standard.  The highest increase in pH and decrease in TSS levels in the tofu liquid waste treatment was the SSF-Wetland processing with water hyacinth plants (A2). This shows that water hyacinth plants have a greater role in neutralizing pH and can absorb the most suspended matter compared to apu wood and lemna minor plants.

scholarly journals Liquid Waste Content Based on Chemical Parameters at Animal Slaughterhouse’s Inlet and Outlet

2018 ◽  
Vol 2 (2) ◽  
pp. 88-94
Author(s):  
Evi Dwi Atika Sari ◽  
Anita Dewi Moelyaningrum ◽  
Prehatin Trirahayu Ningrum
Keyword(s):  
Waste Treatment ◽  
Treatment Plant ◽  
Liquid Waste ◽  
Quality Standard ◽  
Average Percentage ◽  
Descriptive Research ◽  
Fatty Oil ◽  
Safe Limit ◽  
Waste Treatment Plant ◽  
High Concentrations

Animal Sluaghterhouse (RPH) liquid waste contains organic matter, suspended solids, and colloid materials such as fat, protein, and cellulose with high concentrations that fall into the category of complex wastewater. RPH X is a RPH that uses Water Waste Treatment Plant (WWTP) in treating wastewater, although it has been equipped with WWTP there are still some problems in RPH X. The purpose of this research is to describe wastewater treatment and content of BOD, COD, TSS, NH3-N, pH and fatty oil at waste water in inlet and outlet of IPAL RPH X, Jember District. This research is a descriptive research. Technique of data collecting done by observation, interview, and laboratory test. The average of wastewater content test result in RPH X Jember Regency at inlet and outlet of IPAL is at safe limit of quality standard according to East Java Governor Regulation Number 72 Year 2013 except COD parameter at inlet that is equal to 277,6 mg / L. The average percentage of content in liquid waste in RPH X decreases from inlet to WWTP outlet except the pH parameter.

Experimental and Modelling of Aqueous Radioactive Waste Treatment by Ultrafiltration

2018 ◽  
Vol 69 (5) ◽  
pp. 1149-1151
Author(s):  
Laura Ruxandra Zicman ◽  
Elena Neacsu ◽  
Felicia Nicoleta Dragolici ◽  
Catalin Ciobanu ◽  
Gheorghe Dogaru ◽  
...  
Keyword(s):  
Flow Rate ◽  
Suspended Solids ◽  
Waste Treatment ◽  
Operating Pressure ◽  
Feed Flow Rate ◽  
Permeate Flux ◽  
Independent Variables ◽  
Opposite Trend ◽  
Process Factors ◽  
Volumetric Flux

Ultrafiltration of untreated and pretreated aqueous radioactive wastes was conducted using a spiral-wound polysulphonamide membrane. The influence of process factors on its performances was experimental studied and predicted. Permeate volumetric flux and permeate total suspended solids (TSS) were measured at different values of feed flow rate (7 and 10 m3/h), operating pressure (0.1-0.4 MPa), and feed TSS (15 and 60 mg/L). Permeate flux (42-200 L/(m2�h)) increased with feed flow rate and operating pressure as well as it decreased with an increase in feed TSS, whereas permeate TSS (0.1-33.2 mg/L) exhibited an opposite trend. A 23 factorial plan was used to establish correlations between dependent and independent variables of ultrafiltration process.

scholarly journals Screening of Effective Media for Black Soldier Fly Larvae Used in Food Waste Treatment

2020 ◽  
Vol 42 (10) ◽  
pp. 463-471
Author(s):  
Chul-Hwan Kim ◽  
Kwanyoung Ko ◽  
Jongkeun Lee ◽  
Haegeun Chung
Keyword(s):  
Food Waste ◽  
Wheat Bran ◽  
Waste Treatment ◽  
Treatment Method ◽  
Treatment Technology ◽  
Black Soldier Fly ◽  
Black Soldier Fly Larvae ◽  
Fly Larvae ◽  
By Products ◽  
Bean Sprouts

Objectives : Black soldier fly larvae (BSFL) are organisms that effectively decompose various types of organic waste including food waste, and food waste treatment using BSFL is attracting attention as a sustainable waste treatment method. However, food waste discharged from Korea has a wide variety of properties, and its high salt concentration limits its treatment by BSFL. Therefore, to increase the efficiency of food waste treatment using BSFL, it is necessary to increase the quality of food waste as a production medium for BSFL. In this study, the ratio of protein and fat was adjusted by adding bean sprouts and wheat brans to food wastes treated at high temperature under vacuum, and whether such medium is suitable for rearing BSFL was investigated.Methods : To improve the medium, the ratio of protein and fat was adjusted to approximately 2:1 by adding bean sprouts and bran residue to food waste. Subsequently, the growth and development rate of BSFL reared on chicken feed, food waste, food waste + bean sprouts, food waste + wheat bran were measured. Also, the decomposition rate of each medium was analyzed.Results and Discussion : The growth rate of BSFL grown on food waste + wheat bran medium was similar to that of BSFL reared on chicken feed. The speed of development at day 7 was also the fastest for BSFL reared with food waste + wheat bran medium and chicken feed. These results suggest that the mixed medium to which wheat bran has been added to food waste has the potential to be used as a commercial medium for BSFL production. The survival rate of BSFL was 89% or higher in all media.Conclusions : When food waste was used alone, BSFL development was poor compared to that in media combined with agricultural by-products such as bean sprouts and wheat bran. Therefore, to use food waste as a rearing medium of BSFL, it is necessary to adjust the ratio of protein and fat by adding various agricultural by-products and reduce salinity. For the improvement of food waste treatment technology using BSFL, mass rearing of useful insects such as BSFL, and promotion of the use of agricultural by-products, additional research is needed to optimize the composition of rearing medium based on food waste.

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 Recovery Ion Hg2+ dari Limbah Cair Industri Penambangan Emas Rakyat dengan Metode Presipitasi Sulfida dan Hidroksida

2018 ◽  
Vol 12 (1) ◽  
pp. 23
Author(s):  
Ilma Fadlilah ◽  
Agus Prasetya ◽  
Panut Mulyono
Keyword(s):  
Gold Mining ◽  
Mercury Level ◽  
Liquid Waste ◽  
Treatment Method ◽  
Chemical Precipitation ◽  
Precipitation Method ◽  
Precipitation Process ◽  
Sulphide Precipitation ◽  
Slow Mixing ◽  
Precipitation Formation

Unlicensed gold mining activities (PETI) using mercury (Hg) as a gold element binder is called the amalgamation process. Mercury is a heavy metal toxic. The use of mercury can potentially cause pollution in environment, especially the aquatic environment. For overcoming the heavy metals mercury in liquid waste, it needs an alternative wastewater treatment method called chemical precipitation. This study is aimed to recover Hg2+ ions from liquid wastes by using sulphide precipitation and hydroxide methods. This research studied the effect of pH on Hg ions which is deposited in the precipitation process and found out the rate of Hg precipitation formation. Precipitation was done by using sodium sulphide (Na2S) 0.3 M and Ca(OH)2 0.004 M as a precipitation agent with rapid mixing speed for about 200 rpm for 3 minutes and continued with slow mixing for about 40 rpm for 30 minutes. Then, just let the liquid sample be for 24 hours to precipate the precipitate formed. The results show that precipitation method by using a Na2S solution can decrease the content of Hg in HgCl2 synthetic waste. An optimum  mass of HgS precipitate of  0,0458 g was achieved pH 9 for 200 mL of wastewater liquid with a removal efficiency percentage up to 99.81%. The concentration of mercury can be derived from 130 ppm to 0.25 ppm. The rate of formation of HgS precipitate was obtained 0.0004g/ hour. While, hydroxide precipitation method can decrease mercury level up to 90,11% at pH 12 and mass of Hg (OH)2 precipitate obtained is 0,2784 g. However, the result of EDX analysis of the precipitate of Hg (OH)2 shows that the content of Hg precipitate is just 0.281%.

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