Potential Use of Hibiscus Rosa-Sinensis Leaf Extract for the Destabilization of Turbid Water

Nidheesh, P.V.; Thomas, Praveen; Nair, Kishore A.; Joju, Jones; Aswathy, P.; Jinisha, R.; Varghese, George; Gandhimathi, R.

doi:10.1007/s11270-016-3232-1

Cited by 12 publications

(11 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3 shows various functional groups present in the investigated KCPs. The bands between 3150cm -1 and 3500cm -1 correspond to hydroxyl (-OH stretching vibration mode) and amine group (-NH stretching) which are present in fatty acids, proteins and carbohydrates (Nidheesh et al, 2017). Bands corresponding to peaks 2925cm -1 and 2851cm -1 are attributed to asymmetric and symmetric stretching of C-H-CH 2an aliphatic compound, present in organic compounds such as fatty acids (Araújo et al, 2010).…”

Section: Kcp Characterisationmentioning

confidence: 99%

Characterisation and performance of three Kenaf coagulation products under different operating conditions

et al. 2021

View full text Add to dashboard Cite

Where a licence is displayed above, please note the terms and conditions of the licence govern your use of this document. When citing, please reference the published version. Take down policy While the University of Birmingham exercises care and attention in making items available there are rare occasions when an item has been uploaded in error or has been deemed to be commercially or otherwise sensitive.

show abstract

Section: Kcp Characterisationmentioning

confidence: 99%

Characterisation and performance of three Kenaf coagulation products under different operating conditions

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Figure 10 is a comparison of the infrared spectra of PAC and PATC prepared under different reaction conditions with the potassium bromide method. Table 2 presents the single variable of PATC (1)(2)(3)(4) scale. The figure indicates a wide strong absorption peak at 3300-3500 cm −1 , which was caused by the stretching vibration of -OH and the water molecules in the sample with Ti and Al [31].…”

Section: Effect Of Different N(si)/n(ti+al) On Patc Treatment Of Low-mentioning

confidence: 99%

“…Thus, it can be determined that the introduction of titanium and silicon produces new substances. By using Jade 6 to analyze the obtained XRD, it can be identified that new diffraction structures, such as Na 1 4 , are present in PATC. Thus, we infer that aluminum chloride, sodium silicate, and titanium tetrachloride are more abundant than those occurring between materials, such as the mixture.…”

Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 99%

“…Impurities in water usually exist in the form of colloids and thus have good dynamic and aggregation stability. When the turbidity of water is low, the probabilities of a collision between particles, occurrence of a reaction, and formation of flocculation are low, thus, water cannot settle easily [4,5]. At present, the treatment of low-turbidity water mainly includes chemical medicine optimization, enhanced Scientific Instrument (Beijing, China) Co., Ltd. (Beijing, China).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Preparation and Characterization of Polyaluminum Titanium Silicate and its Performance in the Treatment of Low-Turbidity Water

Liao

Zhang

2018

Processes

View full text Add to dashboard Cite

Using conventional coagulant, low turbidity water is difficult to achieve standard. This research uses aluminum chloride, titanium tetrachloride, and sodium silicate as raw materials for the preparation of polyaluminum titanium silicate chloride (PATC). PATC is used to treat low turbidity. The synthetic PATC showed the best coagulating effect in treated water under the following experimental conditions: Reaction temperature of 50 • C, and n(Ti)/n(Al), n(-OH)/n(Ti+Al), and n(Si)/n(Ti+Al) were 0.3, 0.2, and 1.0, respectively. The species distribution and the transformation of PATC showed that the interaction between titanium tetrachloride, sodium silicate, and the hydrolysate of Al influenced the morphology distribution of Al. Temperature and -OH greatly affected the distribution of Alb in PATC. The analysis of infrared spectra and X-ray diffraction indicated that both titanium tetrachloride and sodium silicate had complex chemical reactions with aluminum chloride. Si-O-Ti and Si-O-Al produced by the reaction affected the PATC treatment of low-turbidity water. Scanning electron microscopy showed, that compared with polyaluminum chloride(PAC), the PATC cluster was more compact, showed greater pore structure, and presented better flocculation precipitation. The optimal reaction conditions were an initial turbidity of 10 nephelometric turbidity unit(NTU), PATC dosage of 9 mg/L, pH of 8 for the simulated water sample, stirring speed of 50 r/min, and settling time of 50 min, which were determined by Orthogonal experiment. The zeta potential of the reaction process was analyzed. In the treatment of low-turbidity water, PATC mainly functioned by adsorbing, bridging, and sweeping flocculation. Electrical neutralization played an auxiliary role.Processes 2018, 6, 125 2 of 19 coagulation, sludge recycling technology, dissolved air flotation, micro flocculation contacting filter technology, pre-oxidation technology, and advanced treatment [6,7].Coagulation-precipitation is one of the important steps in the treatment of drinking water. After conventional treatment, such as coagulation and precipitation filtration, water can reach the turbidity standard of drinking water. Therefore, the selection of effective coagulants is one of the key steps in drinking water treatment. The main coagulant used in China is aluminum coagulant. However, the use of a single aluminum coagulant has corresponding drawbacks, for example, the residual aluminum residue caused using an aluminum coagulant is harmful to the human nervous system [8,9]. Polysilicic acid is a cheap and harmless inorganic polymer coagulant that is stable and durable. It is effective in water turbidity treatment after polymerization of aluminum salt or iron salt coagulant. The introduction of polysilicic acid increases the flocculant molecular weight, and studies have reported that the combination of polysilicic acid and metal salts can improve the ability of adsorption and net capture to ultimately improve the flocculation capacity of flocculants [10][11][12][13]. In addition...

show abstract

“…Coagulant with trivalent ions are more efficient than those with divalent ions due to the amount of unoccupied charges [4]. Furthermore, the addition of flocculants (coagulant aids) contributes to an increased efficiency by promoting the destabilization of particles to form micro-floc [5]. Following the addition of flocculants, micro floc particles will bind onto more than one particle and will need to be removed by sedimentation and filtration [6].…”

Section: Introductionmentioning

confidence: 99%

Combination of Iron Chloride and Polyacrylamide as Coagulant-Flocculants to Remove Pollutants in Dye Wastewater

Ishak¹,

Murshed²,

Ismail³

et al. 2019

IJIE

View full text Add to dashboard Cite

Potential Use of Hibiscus Rosa-Sinensis Leaf Extract for the Destabilization of Turbid Water

Cited by 12 publications

References 26 publications

Characterisation and performance of three Kenaf coagulation products under different operating conditions

Characterisation and performance of three Kenaf coagulation products under different operating conditions

Preparation and Characterization of Polyaluminum Titanium Silicate and its Performance in the Treatment of Low-Turbidity Water

Combination of Iron Chloride and Polyacrylamide as Coagulant-Flocculants to Remove Pollutants in Dye Wastewater

Contact Info

Product

Resources

About