Is a sequencing batch biofilter granular reactor suitable for textile wastewater treatment?

2012 ◽  
Vol 66 (7) ◽  
pp. 1392-1398 ◽  
Author(s):  
A. M. Lotito ◽  
U. Fratino ◽  
A. Mancini ◽  
G. Bergna ◽  
C. Di Iaconi
Keyword(s):  
Wastewater Treatment ◽  
Cost Reduction ◽  
Textile Industry ◽  
Biological Treatment ◽  
Textile Wastewater ◽  
Pollutant Load ◽  
Operational Conditions ◽  
Different Types ◽  
Textile Wastewater Treatment ◽  
Direct Discharge

The textile industry releases highly polluted and complex wastewaters, which are difficult to treat and require numerous treatment steps. Innovative technologies for on-site treatment at each factory would permit cost reduction. For this reason, we ran a laboratory-scale study to assess the suitability of a sequencing batch biofilter granular reactor (SBBGR) for textile wastewater treatment, testing four different types of wastewater. Results demonstrate that wastewater characteristics greatly affect the reactor efficiency. Hence, a pre-study is advisable to define the best operational conditions and the maximum treatment capability for the wastewater under analysis. Nevertheless, SBBGR is a valuable biological treatment, effective in the reduction of pollutant load with stable performances despite the variability in wastewater composition. Tests with ozone integration have demonstrated that it is possible to dose small quantities of ozone to obtain an effluent suitable for direct discharge. However, a dynamic ozone dosage should be used to optimize the process as the correct ozone dose strongly depends on the wastewater composition.

scholarly journals Potential of Catalytic Ozonation in Treatment of Industrial Textile Wastewater in Indonesia: Review

2020 ◽  
Vol 11 (1) ◽  
pp. 1-11
Author(s):  
Rame Rame
Keyword(s):  
Wastewater Treatment ◽  
Textile Industry ◽  
Pollution Prevention ◽  
Textile Wastewater ◽  
Catalytic Ozonation ◽  
Future Research ◽  
Organic Contamination ◽  
Treatment Unit ◽  
Future Research Directions ◽  
Textile Wastewater Treatment

Industrial textile wastewater is one of the most heavily polluting in Indonesia. Wastewater from industrial textile contains organic contamination that is very difficult to remove pollutants that remaining even though it has been through the usual wastewater treatment unit installed and bio refractory in nature. Toxic organic compounds discharged from the textile industry, such as colored dyes, heavy metals, and various chemicals, will hurt the environment. These contaminants have been proven toxic to the biotic environment, such as mutagenic, which can increase the incidence of cancer and endocrine disruptor effects. Removal of contaminants from industrial textile wastewater is currently one of the most critical subjects in water pollution prevention. Applications of catalytic ozonation treatment initially, powder catalysts have been employed, and later, the use of activated carbon materials in more advanced catalyst structures reported, and more sophisticated types of catalyst equipment namely carbon nanotube, and nanoparticles. In-depth research on the combination of ozonation and catalytic research of industrial textile wastewater treatment has the potential to become a well-developed approach to treatment industrial textile wastewater. This review provides process principles and characteristics, including the use of various catalysts, variations in reactor design, and application catalytic ozonation in synthetic textile wastewater and real industrial textile wastewater outlined and discussed. Include future research directions of the treatment of industrial textile wastewater in to clean water with drink quality. 

scholarly journals ENVIRONMENTAL SYSTEM ENGINEERING (ESE): MODELING AND OPTIMIZATION OF A TEXTILE EFFLUENT DISCOLORATION PROCESS BY SORPTION

2016 ◽  
Vol 21 (4) ◽  
Author(s):  
ZAHARIA CARMEN
Keyword(s):  
Wastewater Treatment ◽  
Textile Wastewater ◽  
System Engineering ◽  
Environmental Modeling ◽  
Textile Effluent ◽  
Ecological Processes ◽  
Environmental System ◽  
Modeling And Optimization ◽  
Operational Conditions ◽  
Textile Wastewater Treatment

<p>Nowadays, an interdisciplinary field of engineering that focuses on analytical and/or empirical models represented by mathematical, data-driven and biotic structures combined with physical, biological and ecological processes in water, air and eco-systems is developing, <em>i.e.</em> environmental system engineering (ESE). In this system, environmental modeling and process optimization acts together for solving problems with environmental systems, especially for minimizing pollution, or eco-toxicological effects.</p><p>The present paper proposes the study of modeling and optimization of an environmental system (<em>i.e</em>. textile wastewater treatment system based on sorption onto indigene peat) for its discoloration (consequently, decreasing of color, organic and inorganic loads of effluent discharged in aquatic receptor, or inside reused). All performed laboratory tests consisted in 22 hours-sorption experiments onto peat applied for a real colored textile effluent, organized with respecting of an empirical planning by a central active composite rotatable 2<sup>3</sup> order design, considering as independent variables the peat dose (X<sub>1</sub>), pH (X<sub>2</sub>), and temperature (X<sub>3</sub>), and as optimization criterion, or decision function, the discoloration degree, or color removal (Y, [%]). The mathematical model was found adequate for the textile wastewater treatment, and the optimal operational conditions for highest discoloration efficiency were proposed.</p>

scholarly journals ENVIRONMENTAL SYSTEM ENGINEERING (ESE): MODELING AND OPTIMIZATION OF A TEXTILE EFFLUENT DISCOLORATION PROCESS BY SORPTION

2015 ◽  
Vol 21 (4) ◽  
pp. 68-78
Author(s):  
CARMEN ZAHARIA
Keyword(s):  
Wastewater Treatment ◽  
Textile Wastewater ◽  
System Engineering ◽  
Environmental Modeling ◽  
Textile Effluent ◽  
Ecological Processes ◽  
Environmental System ◽  
Modeling And Optimization ◽  
Operational Conditions ◽  
Textile Wastewater Treatment

Nowadays, an interdisciplinary field of engineering that focuses on analytical and/or empirical models represented by mathematical, data-driven and biotic structures combined with physical, biological and ecological processes in water, air and eco-systems is developing, i.e. environmental system engineering (ESE). In this system, environmental modeling and process optimization acts together for solving problems with environmental systems, especially for minimizing pollution, or eco-toxicological effects. The present paper proposes the study of modeling and optimization of an environmental system (i.e. textile wastewater treatment system based on sorption onto indigene peat) for its discoloration (consequently, decreasing of color, organic and inorganic loads of effluent discharged in aquatic receptor, or inside reused). All performed laboratory tests consisted in 22 hours-sorption experiments onto peat applied for a real colored textile effluent, organized with respecting of an empirical planning by a central active composite rotatable 23 order design, considering as independent variables the peat dose (X1), pH (X2), and temperature (X3), and as optimization criterion, or decision function, the discoloration degree, or color removal (Y, [%]). The mathematical model was found adequate for the textile wastewater treatment, and the optimal operational conditions for highest discoloration efficiency were proposed.

OZONATION – AN IMPORTANT TECHNIQUE TO COMPLY WITH NEW GERMAN LAWS FOR TEXTILE WASTEWATER TREATMENT

1994 ◽  
Vol 30 (3) ◽  
pp. 255-263 ◽  
Author(s):  
Frank Gähr ◽  
Frank Hermanutz ◽  
Wilhelm Oppermann
Keyword(s):  
Wastewater Treatment ◽  
Textile Industry ◽  
High Performance ◽  
Oxygen Demand ◽  
Textile Wastewater ◽  
Ozone Treatment ◽  
Partial Replacement ◽  
Textile Production ◽  
Textile Wastewater Treatment ◽  
The Ideal

The German textile industry is challenged by the introduction of new governmental regulations in the field of textile wastewater treatment This causes a large increase of water costs in comparison with other European countries. Many economic experts even see Germany seriously endangered as a place of textile production, however there are also opportunities with the development of high performance cleaning technologies as a result of these governmental measures. In particular the required separate treatment of selected wastewaters of different fmishing processes bas some good perspectives since specialized wastewater techniques can be applied efficiently. For instance the separation of unfixed reactive dyes is the ideal basis for ozone oxidation. Ozonation being a sludge-free method to decompose dyestuff, fmishing products, and other organic materials is of increasing importance because of the limited space for disposal of sludges. Other advantages of ozone treatment are the improvement of biodegradability, reduction of aromatic and halogenated organic compounds and also a significant decrease of chemical oxygen demand. The ozonation of textile wastewaters in combination with inexpensive biological processes has the potential to play a major role in the future. Partial replacement of coagulation/precipitation can be expected.

scholarly journals Treatment of textile wastewater by advance oxidation processes

2013 ◽  
Vol 6 (3) ◽  
pp. 222-230 ◽  
Keyword(s):  
Wastewater Treatment ◽  
Biological Treatment ◽  
Conventional Treatment ◽  
Advanced Oxidation Processes ◽  
Textile Wastewater ◽  
Treatment Efficiency ◽  
Effluent Quality ◽  
Oxidation Processes ◽  
Treatment Processes ◽  
Textile Wastewater Treatment

The use of conventional textile wastewater treatment processes becomes drastically challenged to environmental engineers with increasing more and more restrictive effluent quality by water authorities. Conventional treatment such as biological treatment discharges will no longer be tolerated as 53% of 87 colours are identified as non-biodegradable. Advanced oxidation processes hold great promise to provide alternative for better treatment and protection of environment, thus are reviewed in this paper. An overview of basis and treatment efficiency for different AOPs are considered and presented according to their specific features.

scholarly journals A Mini Review on Antiwetting Studies in Membrane Distillation for Textile Wastewater Treatment

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 243
Author(s):  
Guang Yang ◽  
Jianhua Zhang ◽  
Mingguo Peng ◽  
Erdeng Du ◽  
Yong Wang ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Environmental Sustainability ◽  
Textile Industry ◽  
Water Reuse ◽  
Textile Wastewater ◽  
Membrane Distillation ◽  
Commercial Application ◽  
Separation Performance ◽  
Textile Wastewater Treatment ◽  
Membrane Wetting

The textile industry is an important contributor to the growth of the global economy. However, a huge quantity of wastewater is generated as a by-product during textile manufacturing, which hinders the ongoing development of textile industry in terms of environmental sustainability. Membrane distillation (MD), which is driven by thermal-induced vapor pressure difference, is being considered as an emerging economically viable technology to treat the textile wastewater for water reuse. So far, massive efforts have been put into new membrane material developments and modifications of the membrane surface. However, membrane wetting, direct feed solution transport through membrane pores leading to the failure of separation, remains as one of the main challenges for the success and potential commercialization of this separation process as textile wastewater contains membrane wetting inducing surfactants. Herein, this review presents current progress on the MD process for textile wastewater treatment with particular focuses on the fundamentals of membrane wetting, types of membranes applied as well as the fabrication or modification of membranes for anti-wetting properties. This article aims at providing insights in membrane design to enhance the MD separation performance towards commercial application of textile wastewater treatment.

Evaluation of Small Wastewater Treatment Plants in the County of Århus – Denmark

1993 ◽  
Vol 28 (10) ◽  
pp. 33-41
Author(s):  
Jes la Cour Jansen ◽  
Bodil Mose Pedersen ◽  
Erik Moldt
Keyword(s):  
Wastewater Treatment ◽  
Constructed Wetlands ◽  
Biological Treatment ◽  
Wastewater Treatment Plants ◽  
Chemical Precipitation ◽  
Common Type ◽  
Treatment Efficiency ◽  
Effluent Quality ◽  
Different Types

Influent and effluent data from about 120 small wastewater treatment plants (100 - 2000 PE) have been collected and processed. Seven different types of plants are represented. The effluent quality and the treatment efficiency have been evaluated. The most common type of plant is mechanical/biological treatment plants. Some of them are nitrifying and some are also extended for chemical precipitation of phosphorus. Constructed wetlands and biological sandfilters are also represented among the small wastewater treatment plants.

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