scholarly journals SEDIMENTATION ANALYSIS OF THE DISPERSED PHASE DURING TREATMENT OF PHENOLIC WASTEWATER OF COKE-CHEMICAL PRODUCTION BY GLAUCONITE

2021 ◽  
Vol 2 (37) ◽  
pp. 93-99
Author(s):  
A. Ivanchenko ◽  
K. Khavikova ◽  
M. Voloshin
Keyword(s):  
Waste Treatment ◽  
Liquid Waste ◽  
Raw Material ◽  
Sedimentation Analysis ◽  
Chemical Production ◽  
Cationic Flocculant ◽  
Treatment Facilities ◽  
Phenolic Wastewater ◽  
Adsorption Treatment

Kinetic regularities of adsorption treatment of phenolic wastewater with glauconite have been revealed. It was found that glauconite at a dose of 2 g/dm3 in combination with a 0.1% solution of cationic flocculant, which provides removal of resinous substances up to 94% for 10 min and phenols up to 20% during 20 min. As a result, the MPC of phenols and resinous substances was achieved at the stage of mechanical treatment of effluents, which are then fed for biochemical processing into aeratanks, which is 415 mg/dm³ and 25 mg/dm3, respectively. The dispersed composition of sediments after treatment of industrial wastewater with glauconite was studied. It was found that the particle radii of the polydisperse system "liquid waste  – glauconite" in combination with cationic flocculant were the largest and reached r = 537 mkm, which is twice the maximum polydisperse systems "liquid waste  – glauconite" and "liquid waste  – glauconite" with an anionic flocculant. Sedimentation analysis showed that the sedimentation time of the sediment decreased from 17 min to 6 min in the system "liquid waste  – glauconite" in combination with cationic flocculant and formed a precipitate of loose flakes, which settled quickly. The introduction of a flotation plant with a dosage of natural glauconite 2 g/dm3 in combination with a 0.1% solution of cationic flocculant at industrial treatment facilities is proposed. Engineering solutions will improve the quality of wastewater supplied for coke quenching and will make it possible to transport and dispose of sludge after waste treatment with glauconite, which is planned to be used as a raw material for the manufacture of pavements in asphalt plants.

scholarly journals Assessment of wastewater treatment plant effluent impact on the ecosystem of the river on the basis of the quantitative development of ciliated protozoa characteristic of the aeration tank

2020 ◽  
Author(s):  
R. Babko ◽  
V. Pliashechnyk ◽  
T. Kuzmina ◽  
Y. Danko ◽  
J. Szulżyk-Cieplak ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Waste Treatment ◽  
Treatment Plant ◽  
Aeration Tank ◽  
Quantitative Characteristics ◽  
Quantitative Development ◽  
Treatment Facilities ◽  
The Impact

Abstract The work is devoted to the task of simplifying the assessment of the effect of effluents from treatment facilities on the river hydrobiocenosis. The studies were carried out on the mountain river Uzh (Uzhgorod, Ukraine). Our approach to assessing the impact of waste treatment facilities on the river receiver is based on the estimate of the similarity of species composition and quantitative characteristics of populations of organisms from the aerotank and from the river. It is shown that the quantitative development of populations of species of ciliates from the aeration tank is a good indicator for assessing the degradation of organic matter coming with wastewater. The use of qualitative and quantitative characteristics of the protozoa from the wastewater treatment plant as a criterion for assessing the quality of the environment in the area of wastewater discharge showed their representativeness and effectiveness. The use of a limited number of species makes it possible to conduct an express assessment of the effect of effluents on receiving reservoirs for specialists working with activated sludge in the laboratories of treatment facilities.

scholarly journals Classification of Geomembranes as Raw Material for Defects Reduction in the Manufacture of Biodigesters Using an Artificial Neuronal Network

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7345
Author(s):  
Rocio Camarena-Martinez ◽  
Rocio A. Lizarraga-Morales ◽  
Roberto Baeza-Serrato
Keyword(s):  
Waste Treatment ◽  
Raw Material ◽  
Building Process ◽  
Efficient Alternative ◽  
Organic Waste Treatment ◽  
Artificial Neural Network Ann ◽  
Artificial Neuronal Network ◽  
Different Characteristics ◽  
Selection Of

Recently, biodigesters have attracted much attention as an efficient alternative for energy generation and organic waste treatment. The final performance of a biodigester depends heavily on the quality of its building process and the selection of its raw material: the geomembrane. The geomembrane is the coat that covers the biodigester used to control the migration of fluids. Therefore, the selection of the proper geomembrane, in terms of thickness, resistance, flexibility, etc., is fundamental. Unfortunately, there are no studies for the selection of geomembranes, and usually, it is an empirical process performed by workers based on their own experience. Such empirical selection might be inaccurate, limited, inconvenient, and even dangerous. In order to assist workers during the building process of a biodigester, this study proposes the use of an Artificial Neural Network (ANN) to classify a geomembrane as appropriate or not appropriate for the manufacture of a biodigester. The ANN is trained with a database built from qualitative and quantitative evaluations of different characteristics of geomembranes. The results indicate that the proposed ANN classifies the most suitable geomembranes with a 99.9% success rate. The proposed ANN becomes a reliable tool that contributes to the quality and safety of a biodigester.

scholarly journals Pengolahan Limbah Cair Batik Banten secara Koagulasi Menggunakan Tawas dan Adsorpsi dengan Memanfaatkan Zeolit Alam Bayah

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Fitriyah Fitriyah ◽  
Tauny Akbari ◽  
Irfan Alfandiana
Keyword(s):  
Experimental Method ◽  
Natural Zeolite ◽  
Liquid Waste ◽  
Batch System ◽  
Test Parameters ◽  
Before And After ◽  
Adsorption Treatment

The batik industry produces liquid waste from the coloring, washing and rinsing processes. This study was aimed to analyze the quality of Banten batik effluent before and after treatment. The processing is carried out using an experimental method with a batch system by coagulation using alum and adsorption using Bayah's natural zeolite by performing 3 variations of coagulant mass and adsorbent for the dye test parameters, TDS and TSS. The results of the test before treatment were the results for dyes of 344 TCU, TDS 620 mg/L, and TSS 218.5 mg/L. Based on the coagulation treatment using alum, the most efficient coagulant results were obtained to reduce the levels of dyestuffs and TDS, namely by using alum coagulant as much as 1500 mg/L which resulted in 96.6 TCU and 330.0 mg/L respectively, then to reduce TSS levels obtained an efficient coagulant that is 500 mg/L with a yield of 10 mg/L. The adsorption treatment using Bayah natural zeolite can reduce the levels of TDS and TSS with the most efficient results using an adsorbent of 150 g/L obtained for TDS 189.3 mg/L and TSS 13.3 mg/L. So based on the results of processing using coagulation and adsorption methods, it is hoped that the batik industry can apply it in processing the liquid waste produced.

scholarly journals LIMBAH CAIR INDUSTRI KAKAO SEBAGAI BAHAN PEMBUAT NATA

2012 ◽  
Vol 11 (1) ◽  
pp. 31
Author(s):  
YUNIANTA YUNIANTA
Keyword(s):  
Waste Water ◽  
Moisture Content ◽  
Combination Treatment ◽  
Sucrose Concentration ◽  
Liquid Waste ◽  
Raw Material ◽  
Active Charcoal ◽  
Second Step ◽  
Production Research

This research was aimed to utilize the liquid waste of cacao industry as raw material fornata production. Research was performed in two steps : the first steps was clarification processusing active charcoal in different waste dilllutions and the second step was the production ofnata. Result of first step showed that active charcoal concentration and dilution treatmentshowed their effect of all parameters studied. The best result was obtained by treatment of 5%active charcoal concentration and the dilllution of cacao waste : water in 1:3 ratio. The productionof nata in the second step of research was performed using this optimal clarificationcondition. Data showed that the combination treatment of 4% sucrose concentration and 0,4%of (NH4)2SO4 was elected as the best process that gave the best quality of nata. The best treatmentshowed product characteristic : 83,87% of fermentation yield; 95,23% of moisture content;4,22% of fiber content; brightness (L*) of 42,87; 0,01 mm/g.dt of textur and 2,42 cm of natathickness.

scholarly journals Novel Low-Cost Biosorbents of Phenolic Compounds from Olive Mill Wastewaters

Proceedings ◽  
2020 ◽  
Vol 67 (1) ◽  
pp. 1
Author(s):  
Nikoletta Solomakou ◽  
Athanasia M. Goula
Keyword(s):  
Phenolic Compounds ◽  
Olive Oil ◽  
Waste Treatment ◽  
Low Cost ◽  
Liquid Waste ◽  
Raw Material ◽  
Adsorptive Capacity ◽  
Regeneration System ◽  
High Concentration ◽  
Olive Mill

Olive oil is one of the most widely used oils in the world with economic importance for many countries. Olive oil extraction generates large amounts of solid (cake) and liquid waste (olive mill wastewater, OMW), which pose a chronic environmental problem due to their disposal of the produced wastes on the landfill and water recipients. Thus, the research community is in search of techniques, individually or in combination, in order to detoxify waste. The common treatment methods belong to a one-dimensional waste treatment approach, which is depollution. A practical way to overcome the financial obstacle of depollution is to develop treatment schemes that combine depollution with recovery of valuable ingredients, such as phenolics. The toxicity of this waste is mainly due to the high concentration of phenolic compounds, which, however, have strong antioxidant activity, turning OMW into an economical raw material for the recovery of bioactive compounds. Adsorption is generally considered to be the most effective and low-cost method for the removal of phenolics. So far, few studies have been carried out using sorbents for the removal of phenolics from OMW. However, the relatively high initial cost and the need for a costly regeneration system render common sorbents less economically viable. Thus, many researchers have focused their efforts on optimizing adsorption process by development of novel, low-cost adsorbents with high adsorptive capacity, originating from food industry byproducts (biosorbents). The objective of this work is to provide a comprehensive summary of the biosorbents used for OMW management.

scholarly journals VARIASI JUMLAH ELEKTRODA DAN BESAR TEGANGAN DALAM MENURUNKAN KANDUNGAN COD DAN TSS LIMBAH CAIR TEKSTIL DENGAN METODE ELEKTROKOAGULASI

2018 ◽  
Vol 3 (1) ◽  
pp. 21-26
Author(s):  
Achmad Chusnun Ni’am ◽  
Jenny Caroline ◽  
M . Haris Afandi
Keyword(s):  
Efficient Method ◽  
Textile Industry ◽  
Waste Treatment ◽  
Treatment Plant ◽  
Liquid Waste ◽  
Textile Dye ◽  
Pollution Load ◽  
Household Wastewater ◽  
Waste Treatment Plant

The quality of environment especially the water bodies need to be improved on the pollution load of the household wastewater, which in general still does not have a liquid waste treatment plant. Electrocoagulation used in this research because of the simple and efficient method. The aim of study to know the ability of electrocoagulation method for reducing the concentration of COD and TSS in the wastewater from household textile industry.  The sample was taken from the residual wastewater of textile dye (sarung) with a liquid waste requirement of 36 liters. The data for the analysis is the initial and final parameters data were COD and TSS. The electrodes were used aluminum (Al) as an anode and iron (Fe) as a cathode. The research variations were used the number of electrodes and the voltage. The results showed that the treatment of 4 electrodes with 12volt voltage could reduce the COD concentration up to 76% and TSS up to 85% in household wastewater of household textile industry. Keywords: COD, electrocoagulation, liquid waste, TSS

scholarly journals EVALUASI SISTEM PENGELOLAAN LIMBAH CAIR DI RUMAH SAKIT PARU SURABAYA

2013 ◽  
Vol 11 (3) ◽  
Author(s):  
Elis Sugihartini ◽  
Ferry Kriswandana ◽  
Hadi Suryono
Keyword(s):  
Waste Management ◽  
Management System ◽  
Waste Treatment ◽  
Liquid Waste ◽  
Quality Standards ◽  
Descriptive Study ◽  
Hospital Environment ◽  
Management Systems ◽  
Ministerial Decree

Hospital activities could be potentially reduces the quality of the environment and publichealth, especially from the medical home activities. One of this activity produces liquid wastethat are harmful to the hospital environment and the surrounding community if the disposal isnot treated before discharge into the water streams, thus it is important to monitoring andhandling in the hospital environment.This research is a descriptive study with the aim to describe the existing condition ofthe Waste Management System on Pulmonary Hospital at Surabaya. This research is useful tothe Hospital in order to improve their tunnel and immediately running the IPAL to reduce thelevels of pollutants and becomes the safe environment.The results of this study showed that the effluent liquid waste on Pulmonary Hospital atSurabaya has not been in compliance with the State Environmental Ministerial Decree ofRepublic Indonesia No : MEP - 58/MENLH/XIII/1995 because in the results of laboratoryexaminations was conducted on May 11, 2013 as the parameters of BOD, COD, TSS, and MPN,the coli bacteria/100 obtain a percentage of 134 ml mg/I, 237 mg/I, 20 mg/I and 9 x 10-8MPN/100 ml which is not considered feasible due to exceeding quality standards for liquidwaste Constanta to be dispose in water streams. Problems that exist in pulmonary hospitalsnowadays is the liquid waste treatment system due to discharge of liquid waste generated fromvarious sources is not running yet and it does not meet the capacity of the existing IPAL,irregularities found in the existing management system in a pulmonary hospital Surabaya, afterinvestigators traced by researchers there are some pipelines that leak or loss of liquid wastethat directly flows in drainage tunnels, and the sump apparently are not water resistant, and itcaused the water seep or seep into the ground.It is advisable for the pulmonary hospital at Surabaya to improve the liquid wastesystems, from the source to the hospitals liquid waste treatment such as repairing tunnels andfixing the sump. And the most important thing is to immediately run the existing IPAL inpulmonary hospital Surabaya so that the disposal of liquid waste can be reducing the levels ofpollutants and does not pollute or adversely affects the hospital environment or the localcommunity.Keywords: Liquid waste management systems, hospital liquid waste,PENDAHULUANLatar BelakangHospital liquid waste impacts.

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