Abstract
Peanut husk, an agricultural waste is a precursor biomass veteran for chemical activation using phosphoric acid. The work deals with activation of peanut husk using phosphoric acid followed by its application. The effect of various parameters such as impregnation ratio, temperature, particle size and agitation speed on copper adsorption were also studied. Physical characterization of the activated adsorbent was done using SEM, BET and FTIR to understand the modifications. The optimum parameter values of chemical activation influencing adsorption were 20% phosphoric acid concentration, 1:8 acid impregnation ratio, 60 °C activation temperature and 350 rpm stirring speed. The copper uptake was 14.3 mg/g for peanut husk whereas by chemical activation it was increased to 17.88 mg/g. Thus adsorption capacity of peanut husk can be successfully improved using phosphoric acid activation.
Highlights
IntroductionThe copper uptake was 14.3 mg/Sgufbormpietatnedut 6huMskawrh
It is known that phosphoric acid swells the botanical material and modifies the surface characteristics
The adsorption of copper after activation has increased at lower concentration of acid till 20% and with further increase in concentration of acid the copper uptake has decreased considerably (Fig. 1). This may be due to the structural abrasions on the surface of the peanut husk
Summary
The copper uptake was 14.3 mg/Sgufbormpietatnedut 6huMskawrh. Adsorption capacity of peanut husk can be successfully improved using phosphoric acid activation. AbKsetyrawcot.rdTsr:ipneitarnouttohluuesnke, p(hToNspTh)o,riac accoimd,mchoenmlyicualseadctievxaptiloons,ivbeiofoadr smoriblietnatr,ycoapnpderinaddsuosrtpritaiol na,papdlsiocraptitoionns,cacpaancictya.use serious environmental pollution. Bio sorption can be used gIanltlorondsuocftiwonastewater contributing to heavy metal pollu- f2o0r11th).e BtraecattemrieantmoafywdaesgterwadaeterTNcoTntauinndinerg aloewrobhiecavoyr tion (Ingle et al 2014). Copper being a microndThpuoeahstrsreasigienbsenitetetelrennoiatfadecrtsxoootnmtxeosincaubstmiioevcreefegdalxyatpaninulli,ocsthsehicedveonemf,cfooe2prr,t4moho,u6evno-retefdrriiinn1shih0ata0arsonlaryteteoeeisoladuunrlestt,noienedar(nehTimdingNohtsTvheoeri)is,l maneataelrocobnictecnotnadnidtiofonusnddirteocbtleya(nTiNneTxpisesnosiuvrec,esiomf pclaerabnodn eafnfedc/toivre anlitterrongaetniv)e toorcovniavencoti-omnaeltambeotlhisomds.wBhioerseorpatdiodniitsiothnealcaspuabbsitlritayteosf aarcetivneeesditeeds o(nRythloetstuertfaacle. From past few years researchers are interested in can be improved by chemical activation. It has been resubstituting costly methods of water treatment by low cost ported that there is an increase in the adsorption of metal
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: JOURNAL OF ENVIRONMENTAL ENGINEERING AND LANDSCAPE MANAGEMENT
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
