Textile Wastewater Treatment using Hybrid Chitosan-polyarcylamide Flocculant

Jurnal Teknologi ◽

10.11113/jt.v59.1269 ◽

2012 ◽

pp. 61-65

Author(s):

Norzita Ngadi ◽

Nurhayati Izad Abdul Aziz ◽

Siti Fatimah Mohamed Razak

Keyword(s):

Wastewater Treatment ◽

Textile Wastewater ◽

Settling Time ◽

Color Removal ◽

Modified Chitosan ◽

Textile Wastewater Treatment ◽

Flocculation Process ◽

Better Than

In this study, a ntural polymer, chitosan was modified with polyacrylamide (PAM) to prepare an efficient flocculant using redox grafting method. The effectiveness of the modified chitosan (chitosan grafted polyacrylamide) was tested on treatment of industrial textile wastewater. The effect of dosage, pH and settling time on the performance of flocculation process was also investigated. The treated textile wastewater was analyzed by its color removal, COD and turbidity reductions. The results obtained showed that the modified chitosan performed better than unmodified chitosan in the reduction of COD and turbidity of textile wastewater. Dalam kajian ini, polimer semulajadi, kitosan telah di modifikasikan dengan poliacrylamid (PAM) untuk menghasilkan flokulan yang efektif dengan menggunakan kaedah tergabung redox. Keberkesanan kitosan termodifikasi (kitosan tergabung polyacrylamid) telah di uji ke atas rawatan air sisa industri tekstil. Kesan dos, pH dan masa pemendapan ke atas keberkesanan proses flokulasi juga telah di kaji. Air sisa yang terawat di analisa untuk penyingkiran warna, pengurangan COD dan pengurangan kekeruhan. Keputusan yang diperolehi menunjukkan bahawa kitosan termodifikasi adalah lebih baik daripada kitosan tidak termodifikasi dalam pengurangan COD dan pengurangan kekeruhan sisa air tekstil.

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Removal of Reactive Dyes by Sorption/Complexation with Cucurbituril

Water Science & Technology ◽

10.2166/wst.1999.0619 ◽

1999 ◽

Vol 40 (4-5) ◽

pp. 425-433 ◽

Cited By ~ 18

Author(s):

S. Karcher ◽

A. Kornmüller ◽

M. Jekel

Keyword(s):

Wastewater Treatment ◽

Ph Effect ◽

Reactive Dyes ◽

Textile Wastewater ◽

Color Removal ◽

Salt Solutions ◽

Technical Application ◽

Ph Values ◽

Hydrophobic Cavity ◽

Textile Wastewater Treatment

Color removal is an important task in textile wastewater treatment. Cucurbituril, a cyclic hexamer with internal hydrophobic cavity, has been studied as sorbent for removal of reactive dyes. Loadings as high as 1 g/g and more were obtained, making the method seem interesting for technical application. A minimum of 1 to 5 mmol/L calcium is needed for efficient sorption. However, salt concentrations of 100 mmol/L and above decrease sorption efficiency due to increased solubility of cucurbituril in salt solutions. The pH has little influence between 4 and 7.5, higher pH-values can result in decreased sorption. The salt influences are similar for most of the tested dyes whereas the pH-effect differs from dye to dye.

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PENGOLAHAN AIR LIMBAH BERWARNA INDUSTRI TEKSTIL DENGAN PROSES AOPs

Jurnal Air Indonesia ◽

10.29122/jai.v1i2.2344 ◽

2018 ◽

Vol 1 (2) ◽

Author(s):

Rudi Nugroho ◽

Ikbal Mahmud

Keyword(s):

Hydrogen Peroxide ◽

Wastewater Treatment ◽

Key Words ◽

Advanced Oxidation Processes ◽

Advanced Oxidation ◽

Textile Wastewater ◽

Color Removal ◽

Oxidation Processes ◽

Oxidizing Agents ◽

Textile Wastewater Treatment

An experiment of advanced oxydation processes (AOPs) was applicated in textile wastewater treatment for color removal. The experiment was conducted in laboratory scale using ozon and hydrogen peroxide as oxidizing agents. The textile wastewater contains any organic and inorganic dyes that could not be effective treated by coagullation and and sedimentation as well as by conventional aerobic treatments. Result of the experiments concluded that the AOPs technologies could be applied effectively for removal of color. Addition of hydrogen peroxide with volume of 0.25 ml for 1 liter of wastewater exhibits the reaction. The reaction of AOPs for color removal was optimum at temperatur of 70oC. As higher as pH, the reaction become faster and the efficiency of color removal become higher. Key words: advanced oxidation processes, color removal, hydrogen peroxide, ozon,

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Treatment of Industrial Textile Wastewater Using Polyarcrylamide (PAM) and Polyaluminium Chloride (PAC)

Jurnal Teknologi ◽

10.11113/jt.v60.1439 ◽

2013 ◽

Vol 60 (1) ◽

Cited By ~ 1

Author(s):

Norzita Ngadi ◽

Noor Yahida Yahya ◽

Nabilah Muhamad

Keyword(s):

Textile Wastewater ◽

Settling Time ◽

Color Removal ◽

Operating Parameters ◽

Polyaluminum Chloride ◽

Test Experiment ◽

Mixing Speed ◽

Jar Test ◽

Flocculation Process ◽

Polyaluminium Chloride

Dalam kajian ini, poliacrylamid (PAM) dan polialuminium klorida (PAC) telah digunakan sebagai bahan pengental untuk merawat air sisa industri tekstil. Eksperimen ini telah dijalankan dengan menggunakan ujian balang. Kesan dos, kelajuan percampuran dan masa pemendapan ke atas keberkesanan proses flokulasi telah dikaji. Air sisa yang terawat dianalisis untuk penyingkiran warna, pengurangan COD dan pengurangan kekeruhan. Keputusan yang diperolehi menunjukkan bahawa PAM adalah lebih baik daripada PAC dalam merawat air sisa tekstil. PAM mencatatkan penurunan parameter tertinggi, iaitu 6 NTU untuk kekeruhan, 744 mg / l untuk COD, dan scala kurang daripada 0.5 untuk warna. Prestasi tebaik PAM dicapai pada dos 0.07 g dan apabila proses flokulasi dijalankan pada 200 rpm kelajuan percampuran dan 30 min masa pemendapan. Kajian ini juga mendapati bahawa parameter operasi yang dikaji (iaitu dos, kelajuan percampuran dan masa pemendapan) tidak banyak mempengaruhi ke atas penyingkiran warna, dan penurunan kekeruhan dan COD apabila PAC digunakan sebagai bahan pengental. Kata kunci: Pengelompokan; poliacrylamid (PAM); polialuminium klorida (PAC); air sisa tekstil In this study, polyacrylamide (PAM) and polyaluminum chloride (PAC) was used as a flocculant to treat industrial textile wastewater. The experiment was conducted using a Jar test experiment. The effect of dosage, mixing speed and settling time on the performance of the fflocculation process was investigated. The treated textile wastewater was analyzed by its color removal, turbidity and COD reductions. The results obtained showed that PAM performed better in treating the textile wastewater compared to PAC.PAM recorded the highest reduction of parameters, which are 6 NTU for turbidity, 744 mg/l for COD, and scale less than 0.5 for colour. The best performance of PAM was achieved at dosage 0.07 g and when the flocculation process was conducted at 200 rpm of mixing speed and 30 min of settling time. It was also found that the investigated operating parameters (i.e. dosage, mixing speed and settling time) did not influence much on removal of color and reduction of turbidity and COD when PAC was used as flocculant. Keywords: Flocculation; polyacrylamide (PAM); polyaluminum chloride (PAC); textile wastewater

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Engineered Iron Nanoparticles via Green Routes and Their Applications for Textile Wastewater Treatment

Proceedings ◽

10.3390/proceedings2110658 ◽

2018 ◽

Vol 2 (11) ◽

pp. 658

Author(s):

Zeynep Yücesoy-Özkan ◽

Funda Sağırkaya ◽

Melis Terzi ◽

M. Mohib Rezayee ◽

Esra Erdim

Keyword(s):

Wastewater Treatment ◽

Green Tea ◽

Plant Extracts ◽

Iron Nanoparticles ◽

Textile Wastewater ◽

Color Removal ◽

Tea Leaves ◽

Toc Removal ◽

Green Tea Leaves ◽

Textile Wastewater Treatment

Textile wastewaters are characterized by high chemical oxygen demand (COD) concentration, strong color, high pH and temperature, and low biodegradability. Conventional treatment methods are considered to be inefficient to comply with the discharge limits. Recently, nano zero-valent iron (nZVI) technology has received increasing attention of the scientific community as an emerging technology for treatment of polluted streams. Due to smaller particle size, larger surface area and higher surface reactivity of iron nanoparticles, the removal of pollutants occur very rapidly. In this work, we synthesized nZVI employing green chemistry principles in a chemical reduction reaction. Iron precursor solution (FeSO4) was reduced by plant extracts that contain polyphenols. Plant polyphenols are known to possess strong reducing agent properties and act as effective metal chelators. The objective of this study was to characterize the green synthesized iron nanoparticles in terms of size and zeta potential parameters under various synthesis conditions (pH, precursor concentration and precursor/extract volume ratio) and compare the reactivity of the engineered nanoparticles for textile wastewater treatment. Green tea leaves-GT and Rose leaves-R were selected as the plant sources. Plant extracts were examined in terms of their Total Phenolic Content (TPC) expressed as Gallic Acid Equivalent (GAE). Rose leaves were found to possess 2062 mg/L TPC whereas, Green Tea leaves were found to have 1882 mg/L in grinded powder form. Results showed that 74% color removal along with 18% TOC removal could be achieved with 5 ppm of GT-ZVI nanoparticles synthesized at a 2/1 ratio (v/v) of precursor to extract. With the same concentration of R-ZVI nanoparticles, 78% color removal and 40% of TOC removal were observed.

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