Synthesis and surfactant modification of clinoptilolite and montmorillonite for the removal of nitrate and preparation of slow release nitrogen fertilizer

Bhardwaj, Deepesh; Sharma, Monika; Sharma, Pankaj; Tomar, Radha

doi:10.1016/j.jhazmat.2012.05.058

Cited by 86 publications

(67 citation statements)

References 47 publications

(55 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…4) with NZ. This finding is confirmed by the results obtained by XRF analysis of the zeolite samples summarized in Table 1 and indicates the structural integrity of material before and after surfactant treatment [48]. Thus, the structure of zeolite was not changed by chemical treatment.…”

Section: Structural Analysis Of Zeolitesupporting

confidence: 81%

Sorption of acid dye by surfactant modificated natural zeolites

Mirzaei

Mirfazaelian

Gholami

et al. 2016

Journal of the Taiwan Institute of Chemical Engineers

View full text Add to dashboard Cite

Section: Structural Analysis Of Zeolitesupporting

confidence: 81%

Sorption of acid dye by surfactant modificated natural zeolites

Mirzaei

Mirfazaelian

Gholami

et al. 2016

Journal of the Taiwan Institute of Chemical Engineers

View full text Add to dashboard Cite

“…As apertures between solid particles on the coating layer were filled with liquid coating materials, the more closely solid particles arranged, the less amount of liquid material it was used. With the advanced solid-liquid reaction technology, the amount of liquid materials used was reduced in this study and the coating film quality was improved compared to the previous reports (Ni et al, 2011;Bhardwaj et al, 2012).…”

Section: Discussionmentioning

confidence: 78%

Fertilization impacts on green leafy vegetables supplied with slow release nitrogen fertilizers

Cai

Zhu

Wang

et al. 2015

Journal of Plant Nutrition

View full text Add to dashboard Cite

Conventional over-fertilization in green leafy vegetables has promoted the need for alternative nitrogen management practices. A novel slow-release fertilizer, coated with inorganic minerals, Downloaded by [UQ Library] at 09:30 17 June 2015 ACCEPTED MANUSCRIPT ACCEPTED MANUSCRIPT 2 was developed in our lab. The membrane structural characteristics and nitrogen release profile of the product were systematically studied. Furthermore, different fertilization treatments were prepared to study the potential nitrogen use efficiency in Brassica chinensis L., cultivated under open field and greenhouse cultivation patterns. With a relatively smooth surface, coating layer of the newly developed fertilizer stacked by bonded multi-layer of polyaryl polymethylene isocyanate was formed by tightly arraying solid phosphate rock powder granules. After immersing the fertilizer in water, there was about 13% nitrogen released after 24 h and 30% of nitrogen released in 7 days. Moreover, the fertilizer significantly enhanced the yield of Brassica chinensis L. by 28.2%. Nitrogen use efficiency of vegetables treated with the fertilizer was much higher than that of conventional fertilization.

show abstract

“…It was probably that the observed adsorption was only physical adsorption. [24] The phenomenon indicated that the adsorption capacity of modified clinoptilolite was significantly improved comparing to natural clinoptilolite. Therefore, from the perspective of saving time, 2.0 h was considered as proper contact time.…”

Section: The Effect Of Contact Time On Removal Efficiencymentioning

confidence: 98%

Phosphorus Removal From Aqueous Solution By Adsorption Onto La-modified Clinoptilolite

Wang

Qiu

et al. 2016

MATEC Web Conf.

View full text Add to dashboard Cite

Abstract.A La-modified clinoptilolite adsorbent was developed for phosphorus removal from aqueous solution. The effects of operational parameters such as pH, adsorbent dosage, contact time and temperature on phosphorus adsorption were investigated. The results showed that the phosphorus removal ratio of modified clinoptilolite (99.45%) was significantly improved, which was over triple than that of natural ones (31.50%) under optimum conditions. The adsorption process was well described by the pseudo-second-order kinetic model. Moreover, the adsorption data closely fitted the Freundlich isotherm model. The proper pH for phosphorus removal ranged from 5 to 8. The adsorption process was appeared to be controlled by chemical precipitation. The mechanism might involve ion complexation during subsequent adsorption of phosphorus on lanthanum hydroxides. It cost modified clinoptilolite less time to reach equilibrium. The application of modified clinoptilolite is available in wastewater treatment.

show abstract

Synthesis and surfactant modification of clinoptilolite and montmorillonite for the removal of nitrate and preparation of slow release nitrogen fertilizer

Cited by 86 publications

References 47 publications

Sorption of acid dye by surfactant modificated natural zeolites

Sorption of acid dye by surfactant modificated natural zeolites

Fertilization impacts on green leafy vegetables supplied with slow release nitrogen fertilizers

Phosphorus Removal From Aqueous Solution By Adsorption Onto La-modified Clinoptilolite

Contact Info

Product

Resources

About