Microbial purification of kaolin

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Evaluation of the efficiency of ceramic filters for water

 · The Ceramic water filtration has been greatly improving the most waste materials from drinking water in developing countries. This research was carried out to determine the efficiency of the Ceramic water filters in improving water impurities. The raw materials were grind sieved with 0.5 mm opening mush size mixed with water molded in flower pot shape and fired at 700 °C 750 °C and 800

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(PDF) Isolation and screening of bioflocculant-producing

 · kaolin suspension at a dosage size of only 0.1 . The extraction and purification of the bioflocculant . using multiple g enome com parison in microbial .

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Role of Cationization in Bioflocculant Efficiency a

 · Organic and synthetic flocculants are conventional flocculants used in wastewater treatment and tap water purification. The challenges of toxic residue and the resultant secondary pollutants generated from organic and synthetic flocculants have attracted research efforts towards microbial extracellular polymers as nontoxic and biodegradable substitutes.

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Biological beneficiation of kaolin A review on iron

Kaolin bioflocculation and bioflotation studies were reviewed. and refractoriness while preserving the inherent specifications and therefore improving the commercial value of kaolin. Microbial purification methods are preferred since they are environmentally benign (neither use nor release hazardous chemicals) not energy intensive low in

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(PDF) Clay Ceramic Filter for Water Treatment

Ceramic water filters were prepared from different proportions of kaolin and soft wood and sintered at 900 °C 950 °C and 1000 °C. The flow rate conductivity pH of filtered water and removal

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Isolation Identification and Optimization of Culture

A bioflocculant-producing bacterium Bacillus megaterium SP1 was isolated from biofloc in pond water and identified by using both 16S rDNA sequencing analysis and a Biolog GEN III MicroStation System. The optimal carbon and nitrogen sources for Bacillus megaterium SP1 were 20 g L −1 of glucose and 0.5 #x2009g #x2009L #x22121 of beef extract at 30 #xb0C and pH 7.

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PCR-DGGE analysis of the bacterial composition of a kaolin

 · Kaolin is an important industrial raw material and a basis of a range of different products. Microbial spoilage is a detrimental process observed especially in kaolin slurries leading to low quality products and economic loss. Although the alteration of kaolin slurries in ceramic industry was observed the process and the microbial background have not been analyzed in details. This study

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Isolation identification and characterization of an

 · A bioflocculant (MBFA18) was produced by Aspergillus niger (A18) using potato starch wastewater (PSW) as nutrients. The cultivation processes and flocculating treatment for PSW purification were systematically studied. The flocculating rate of the MBFA 18 achieved 90.06 (kaolin clay) under the optimal cultivation condition (PSW with 5950 mg/L COD 20 g/L glucose 0.2 g/L urea and without

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Flocculation of kaolin particles with cationic lignin

 · As observed the flocculation of kaolin particles by KLD increased the average size of flocs. The particle size of kaolin was 4.7 µm without using polymers. The floc size of KLD5 grew to 16.85

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Development of Kaolin Clay as a Cost-Effective Technology

 · Excessive fluoride in potable groundwater is a serious health problem in rural areas of many developing countries. The presence of a small amount of fluoride in potable water is beneficial to human health but a high amount (>1.5 mg/L) has adverse effects. The present study is aimed to prepare a new cost-effective adsorbent of kaolin clay that can be used as a valuable defluoridating agent.

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African Journal of Biotechnologyproduction

The zeta potential of the bioflocculant and Kaolin particles were both negative (-11.6 and -9.24 mV respectively) (Table 4). Addition of Ba 2 to Kaolin suspension and Kaolin suspension plus bioflocculant TMT-1 resulted in reduction of zeta-potential (-6.96 and -2.09 mV respectively). When the negative charge is reduced or totally abolished

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Isolation and characterization of heavy metal removing

 · Flocculation activities of bacterial bioflocculants (10000 ppm) using kaolin clay assay. All results were present as the means (n = 3). flocculating activities on kaolin clay in the presence of Ca2 . Microbial bioflocculants in this study exhibited different flocculating abilities to remove kaolin clay in

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An Effective Flocculation Method to the Kaolin Wastewater

The kaolin wastewater flocculation results show that a high molecular weight and cationic degree of PAD-1 are what produced the strong charge neutralization and bridging abilities resulting in an excellent kaolin wastewater flocculation performance (residual turbidity = 5.9 NTU and floc size d 50 = 565.936 μm).

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Processing and Evaluation of Locally Sourced Kaolin for

Kaolin samples were locally sourced from Abia state and Ogun state of Nigeria. Purification was done through wet processing and chemical treatment of the samples. Chemical leaching was done using 2mol/l 4mol/l and 8mol/l concentrations of hydrochloric acid with subsequent boiling for 6 hours. They were subjected to identification test for

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Frontiers Exploration of Performance Kinetics and

 · This study explores production of an efficient bioflocculant BF-VB2 by strain Bacillus sp. TERI VB2 and proposes its potential application in wastewater treatment. One milligram of BF-VB2 can effectively flocculate 1980.0 mg ± 5.0 mg of kaolin particles leading to 99.0 ± 0.5 enhancement in flocculation activity and 99.6 ± 1.0 reduction in turbidity in less time.

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Method Of Purification Of KaolinNewsFoshan Powtech

In a long period of time kaolin will be an ideal choice for high-grade coated paper pigment. With the higher demand of the downstream users on the quality of kaolin products it has greatly promoted the development of Kaolin mineral processing and purification ultrafine grinding calcination surface modification dehydration and other

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Method of processing kaolin

Method of processing kaolin Products. As a leading global manufacturer of crushing grinding and mining equipments we offer advanced reasonable solutions for any size-reduction requirements including Method of processing kaolin quarry aggregate and different kinds of minerals.

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(PDF) Purification and characterization of an exo

In another assay purification the same volume of enzyme solution was first treated with 40 50 or 60 mg of kaolin (hydrated aluminum silicate The optimal conditions for the production of exo-PG by CaulinTM) per milliliter of solution to remove the pigments and some of the Penicillium viridicatum RFC3 were determined in earlier work protein.

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Microbial refinement of kaolin by iron-reducing bacteria

Microbial refinement of low-grade kaolin to remove Fe (III) by iron-reducing bacteria was investigated. The removal of Fe (III) impurities could be performed by the indigenous microorganisms in

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Quantification of Encapsulated Bioburden in Spacecraft

 · Kaolin ASP 200 600 and 900 (3 different grain sizes) were separately tested for microbial contamination by cultivation on three different media as well as by DNA extraction and qPCR. As kaolin could be suspended in water DNA extraction efficiency was higher than for the final polymeric material Scotch-Weld 2216 B/A.

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(PDF) Clay Ceramic Filter for Water Treatment

Ceramic water filters were prepared from different proportions of kaolin and soft wood and sintered at 900 °C 950 °C and 1000 °C. The flow rate conductivity pH of filtered water and removal

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Method of processing kaolin

Method of processing kaolin Products. As a leading global manufacturer of crushing grinding and mining equipments we offer advanced reasonable solutions for any size-reduction requirements including Method of processing kaolin quarry aggregate and different kinds of minerals.

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Kaolin purification equipmentPOWTECHINA

 · Kaolin mineral processing and purification are becoming more and more important in processing. The beneficiation method of kaolin is determined according to the type of impurities to be removed micro-inlay size and product quality standards. which was then leached with chemical and microbial derived organic acids. For the preparation of

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Microbial refinement of kaolin by iron-reducing bacteria

 · Microbial refinement of low-grade kaolin to remove Fe (III) by iron-reducing bacteria was investigated. The removal of Fe (III) impurities could be performed by the indigenous microorganisms in kaolin but could be enhanced by the inoculation of iron-reducing bacteria. Maltose sucrose and glucose could be used as substrates.

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Kaolin suspension compound processed by biological

Better purification effect could be obtained by microbial flocculants and chemical flocculants used together and the total dosage of flocculants could be greatly reduced. The optimum dosage and fractal characteristics of flocks with the use of compound microbial flocculants and inorganic floc-culants were investigated. Materials and methods

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Preparation characterization and antibacterial

 · The GPE–AgNPs /Kaolin composite can be further utilized in Kaolin-based filters for water purification. References Ahmed S Ahmad M Swami BL Ikram S (2016) A review on plants extract mediated synthesis of silver nanoparticles for antimicrobial applications a green expertise.

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Host specific endophytic microbiome diversity and

 · The endophytic microbial community at the root and shoot of the young stage was very (1.0 nm) and kaolin (0.72 nm) minerals. Purification of the amplicon library was done by 1 AMpureXP

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Chemical composition and biological activity of ripe

The chemical composition and biological activity of three parts (rind flesh and seeds) of pumpkin fruits (Cucurbita pepo L.) cultivated in Egypt were studied. Chemical analysis of fibre protein β-carotene carbohydrates minerals and fatty acids present in the rind flesh seeds and defatted seed

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Biological beneficiation of kaolin A review on iron

 · The factors were pH strain type amount of kaolin and the time of clay addition to the culture. For in-situ experiment all of the iron content was removed by A. niger CBS 1120 in less than 10 days when the pH value was adjusted to 2 while CBS 246-65 was able to

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The purification of natural coagulant extracted from

 · The purification of natural coagulant extracted from common unpleasant odour of water may lead to increased microbial growth and will react this 1 kaolin suspension to tap water to obtain water with an initial turbidity of 35 NTU (nephelometric turbidity units).

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Purification and characterization of an extracellular

 · The IR spectrum of the purified polysaccharide displayed a broad stretching intense peak at around 3420 cm −1 characteristic for hydroxyl and amine groups and a weak C H stretching band at 2923 cm −1.The peak around 2121 cm −1 also indicated aliphatic C H bonds. Further an asymmetrical stretching peak was noticed at 1700 cm −1 and a weak symmetrical stretching peak near 1447–1380

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Biological Purification of Silicate Minerals Scientific

Bioleaching is technology applicable to iron extraction from low-grade non-metallic raw materials. Bioleaching of quartz sands and feldspars involves the action of heterotrophic bacteria. Impurities include finegrained limonite goethite hematite or mica were removed by the reductive dissolution of Fe3 in linked with the silicate mineral destruction.

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Experimental Evaluation on Comparative Performance of

Sulfate and Sulfuric acid factory private PLC. Synthetic turbid water was prepared by adding 10g of kaolin (clay suspension) to 1 liter of distilled water. The suspension was stirred for about 1 hour to achieve a uniform dispersion of kaolin particles. Then it was allowed to settle for 24 hours for complete hydration of the kaolin.

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Microbial flocculation by Bacillus mucilaginosus

 · Microbiological flocculation in wastewater by a strain of Bacillus mucilaginosus was examined and the flocculation mechanism was investigated using Coomassie brilliant blue reaction Anthrone reaction thin-layer chromatography (TLC) scanning electronic microscope and infrared spectroscopy. The GY03 strain isolated from farmland soil was identified as B. mucilaginosus by its morphology and

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Development of Kaolin Clay as a Cost-Effective Technology

 · Excessive fluoride in potable groundwater is a serious health problem in rural areas of many developing countries. The presence of a small amount of fluoride in potable water is beneficial to human health but a high amount (>1.5 mg/L) has adverse effects. The present study is aimed to prepare a new cost-effective adsorbent of kaolin clay that can be used as a valuable defluoridating agent.

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Reducing Sediment and Bacterial Contamination in Water

 · Figure 9. New mucilage tests on kaolin suspended in DI water (50g/L) 41 Figure 10. TEM images of the stock solution of A) GE and B) NE 42 Figure 11. AFM scans of GE (A) and NE (B) stock solutions with imaged areas of 2 x 2 µm x-y 43 Figure 12. Kaolin particle size evaluation using DLS and TEM 44 Figure 13.

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