Advanced defluoridation from industrial wastewater with high‐concentration fluoride through a novel three‐stage treatment process

2021 ◽  
Author(s):  
Dechao Xu ◽  
Boping Yu ◽  
Xingxing Lu ◽  
Sushuang Luo ◽  
Weimian Wang ◽  
...  
Keyword(s):  
Industrial Wastewater ◽  
Treatment Process ◽  
High Concentration

Alkaline Activated Material as the Adsorbent for Uptake of High Concentration of Zinc from Wastewater

2016 ◽  
Vol 721 ◽  
pp. 123-127 ◽  
Author(s):  
Kamila Gruskevica ◽  
Girts Bumanis ◽  
Kristina Tihomirova ◽  
Diana Bajare ◽  
Tālis Juhna
Keyword(s):  
Industrial Waste ◽  
Industrial Wastewater ◽  
Cementitious Material ◽  
Organic Substances ◽  
New Materials ◽  
Binding Agent ◽  
High Concentration ◽  
Complex Composition ◽  
Standard Solution ◽  
Post Industrial

The use of wastes for developing of new materials is a sustainable approach. In current study filter media produced from industrial waste was tested for an ability to decrease high concentration of zinc in standard solution and industrial wastewater. The geopolymer production requires mixing of post-industrial waste with naturally occurred aluminosilicate materials by using binding agent at the ambient or slightly increased temperature in order to produce a long lasting eco-friendly cementitious material. The tested media decreased concentration of zinc in standard solution from 72,9 to 19,6 mg/L in 30 min showing similar performance as commercially available zeolite material. In experiments with wastewater the adsorption of Zn by AAM was much lower, which can be explained by the fact that wastewater contained generous amounts of different metal ions, organic substances and oils. Despite complex composition of wastewater AAM was able to immobilize at minimum 22 mg/L (32%) Zn from the solution.

Removal of high-concentration sulfate ions from industrial wastewater using low-cost modified Jordanian kaolin

2021 ◽  
Vol 231 ◽  
pp. 359-366
Author(s):  
Banan Hudaib ◽  
Ali F. Al-Shawabkeh ◽  
Waid Omar ◽  
Habis Al-Zoubi ◽  
Rund Abu-Zurayk
Keyword(s):  
Industrial Wastewater ◽  
Low Cost ◽  
High Concentration ◽  
Sulfate Ions

Aerobic granulation in a sequencing batch reactor (SBR) for industrial wastewater treatment

2005 ◽  
Vol 52 (10-11) ◽  
pp. 335-343 ◽  
Author(s):  
M. Inizan ◽  
A. Freval ◽  
J. Cigana ◽  
J. Meinhold
Keyword(s):  
Industrial Wastewater ◽  
Removal Rate ◽  
Batch Reactor ◽  
Experimental Tests ◽  
Cod Removal ◽  
High Concentration ◽  
Granule Formation ◽  
Aerobic Granulation ◽  
Cod Removal Rate ◽  
Set Up

Aerobic granulation seems to be an a attractive process for COD removal from industrial wastewater, characterised by a high content of soluble organic compounds. In order to evaluate the practical aspects of the process, comparative experimental tests are performed on synthetic and on industrial wastewater, originating from pharmaceutical industry. Two pilot plants are operated as sequencing batch bubble columns. Focus was put on the feasibility of the process for high COD removal and on its operational procedure. For both wastewaters, a rapid formation of aerobic granules is observed along with a high COD removal rate. Granule characteristics are quite similar with respect to the two types of wastewater. It seems that filamentous bacteria are part of the granule structure and that phosphorus precipitation can play an important role in granule formation. For both wastewaters similar removal performances for dissolved biodegradable COD are observed (> 95%). However, a relatively high concentration of suspended solids in the outlet deteriorates the performance with regard to total COD removal. Biomass detachment seems to play a non-negligible role in the current set-up. After a stable operational phase the variation of the pharmaceutical wastewater caused a destabilisation and loss of the granules, despite the control for balanced nutrient supply. The first results with real industrial wastewater demonstrate the feasibility of this innovative process. However, special attention has to be paid to the critical aspects such as granule stability as well as the economic competitiveness, which both will need further investigation and evaluation.

Microthrix parvicella foaming at the Fusina WWTP

2002 ◽  
Vol 46 (1-2) ◽  
pp. 499-502 ◽  
Author(s):  
P. Miana ◽  
L. Grando ◽  
G. Caravello ◽  
M. Fabris
Keyword(s):  
Activated Sludge ◽  
Microscopic Observation ◽  
Industrial Wastewater ◽  
The Other ◽  
Physical Parameters ◽  
High Concentration ◽  
Strong Connection ◽  
Mixed Liquor ◽  
Microthrix Parvicella

The Fusina WWTP receives civil and industrial wastewater from Venice and its hinterland. Its treatment capacity is in the range of 4,000–5,000 m3/h. In winter the Fusina WWTP is subjected to brown and viscous foams developed on the surface of the aeration basins and of the clarifiers. The microscopic observation of biological foams and activated sludge samples showed high concentration of the filamentous organism Microthrix parvicella. This paper investigates the growth of M. parvicella from January 1998 to January 1999 and relates it to foams developed on the aeration basins and clarifiers, to temperature, surfactants, BOD5, NH4, NO3, NO2, DO, PO4 and pH of the wastewater influent, to SVI and the other species of filamentous organisms of mixed liquor. The results demonstrate the strong connection of the foams developed with M. parvicella abundance, the synergic action with surfactants, the dependence of M. parvicella on temperature and no relation to the other chemical and physical parameters investigated.

Development of a Pretreatment Program to Improve Biological Treatability of High Strength and Toxic Industrial Wastewater

1994 ◽  
Vol 29 (9) ◽  
pp. 29-37 ◽  
Author(s):  
A. Brenner ◽  
S. Belkin ◽  
A. Abeliovich
Keyword(s):  
Industrial Wastewater ◽  
Biological Treatment ◽  
Treatment Process ◽  
Control Program ◽  
High Strength ◽  
Small Scale ◽  
Waste Streams ◽  
Wastewater Stream ◽  
Biological Treatability ◽  
Biological Treatment Process

A biological treatment process has been suggested as the main treatment stage for a high (organic) strength industrial wastewater stream, discharged by several chemical industries within a large industrial park. Treatability studies have indicated that the wastes contain a fraction of toxic and non-biodegradable organic matter, which limits the implementation of a conventional biological treatment process for the combined wastewater stream. Therefore, an in-plant control program including waste segregation and process-specific pretreatments is proposed. A protocol that enables selection of waste streams amenable to biological treatment and identification of problematic streams requiring pretreatment is presented and demonstrated. It includes simplified laboratory procedures used for chemical and toxicological characterization of source streams originating in various processes. The results can be used for the development of a pretreatment program for problematic waste streams, based upon local small-scale solutions.

scholarly journals Investigation of the Kinetic Regularities of the Process of Biodegradation of Betaine Surfactant by Bacteria of the Genus Pseudomonas

2021 ◽  
Vol 11 (19) ◽  
pp. 8939
Author(s):  
Anastasia S. Burlachenko ◽  
Olesya V. Salishcheva ◽  
Lyubov S. Dyshlyuk ◽  
Alexander Y. Prosekov
Keyword(s):  
Kinetic Data ◽  
Industrial Wastewater ◽  
Surfactant Concentration ◽  
Time Interval ◽  
Organic Substances ◽  
High Concentration ◽  
First Order ◽  
High Concentrations ◽  
Biological Decomposition ◽  
Toxic Organic Substances

Surfactants are extremely common organic compounds that enter the environment in large quantities in the form of household and industrial wastewater. The toxicity of surfactants for biological systems, the high concentration of substances and the duration of the bioremediation process of polluted ecosystems requires improving the biotechnology of microbial wastewater treatment for surfactants. The purpose of this work is to study the kinetic laws of the reaction of the biological decomposition of betaine surfactants. Pseudomonas bacteria were used as bio-destructors of the surfactants. Kinetic data were obtained to create the possibility of further optimization of research on the biodegradation of toxic organic substances. The strains that were promising destructors of cocamidopropylbetaine were selected. The toxicity of high concentrations of surfactants in relation to microorganisms of the genus Pseudomonas was proven. Safe values of the surfactant concentration for conducting biodegradation tests were found. A kinetic model of the biodestructive process was constructed. It proves that the processes of biodegradation are described by a kinetic equation of the first order. With the derived equation, it is possible to determine the time interval of biodegradation of cocamidopropylbetaine to the specified values by means of mathematical calculations.

scholarly journals Manganese Ions Removal from Industrial Wastewater

2020 ◽  
Vol 71 (7) ◽  
pp. 391-396
Author(s):  
Eugeniu Vasile ◽  
Cristina-Ileana Covaliu ◽  
Oana Stoian ◽  
Gigel Paraschiv ◽  
Ecaterina Matei ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Industrial Wastewater ◽  
Treatment Process ◽  
Adsorption Process ◽  
Treatment Time ◽  
Correlation Coefficients ◽  
Manganese Ions ◽  
Treatment Efficiency ◽  
Wastewater Treatment Process ◽  
Langmuir And Freundlich Models

In this study the removal of Mn (II) ions from wastewater using magnetite nanomaterial was investigated. Some factors influencing the wastewater treatment process were studied such as: treatment time, pH and the concentration of Mn (II) ions from wastewater. The results showed that using magnetite nanomaterial adsorbent lead to a wastewater treatment efficiency higher than 97%. Langmuir and Freundlich models were applied to describe the adsorption process. The correlation coefficients (R2) showed that both models are applicable to the experimental data obtained.

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