Chlorination senge yechinyakare kuchenesa tekinoroji, iyo mvura yakasviba inoburitswa kubva mukubhenesa maitiro ine zvinosvibisa senge dioxin, uye ma organic chloride anonetsa kudzikisira uye zvakanyanya kusvibisa nharaunda.
Ozone tekinoroji inoshandiswa muindasitiri yemapepa ye pulp blekning uye decolorization, yemvura yakasviba decolorization, uye yemhando yepamusoro kurapwa kwemvura. Ozone yave mhinduro inosarudzika muindasitiri yemapepa nekuda kwemutengo wayo wakaderera, kusvibiswa kwezvakatipoteredza uye kushandiswa kwakawanda.
1. Ozone pulp kuchenesa
Ozone inonyanya kuisa oxidizing machenesa mumiriri. Mu pulp blekning system, ozone inopindirana ne pulp lignin kuburikidza neo oxidation, iyo inokonzeresa chromophore kurasikirwa neayo "kuchenesa" kugona uye kuzadzikisa kuchenesa. Kunze kwekubvisa zvinhu zvine mavara, zvinowedzera kubvisa zvakasara lignin nezvimwe zvisina kuchena, inovandudza kuchena uye kuchena kwepurpiti, uye inoita kuti kuchena kugare.
Zvakanakira ozone kuchenesa:
1. Ozone bleaching inzira isina chlorine uye haina kusvibiswa kune zvakatipoteredza;
2. Ozone yakasimba okisijeni, ine simba reactivity uye rakanyanya kushanda;
3. Tsiva chlorine mupurp bleaching process kuti udzikise chloride emissions;
4. Ozone oxidation reaction inokurumidza, ichideredza mutengo wekubhenesa;
5, ozone oxidation kubhenesa kugona, kunatsiridza kuchena kwepepa uye kudzora yero yehuputi.
Ozone pulp kurapwa kwemvura
Ozone yakasimba okisijeni inoshandiswa mukufanotangisa uye nekurapa kwepamberi kwemvura yekurasa indasitiri. Iine mabasa mazhinji pakurapwa kwemvura: kubereka, decolorization uye kuora kweiyo oxidative. Ozone inonyanya kushandiswa kudonhedza mukurasa kwemvura isina tsvina. Deredza hunhu hwezvinhu uye udzikise tsika dzeCOD neBOD.
Ozone yakasimba oxidizing mhedzisiro inogona kuora organic chinhu che macromolecule kuita diki organic chinhu, chinja huturu hwekusvibisa, uye hunyoro hwehuhu hunodzikira. Panguva imwechete yekudzikisira zvinhu zvakasikwa, COD neBOD zvakafanirwa kudzikiswa kuti dziwedzere kuwedzera kunaka kwemvura.
Mukubata nedambudziko rekukura kwechromaticity yemvura yakasviba, ozone oxidation inogona kukonzeresa kuti dhayi rive neruvara kana kuti bivalent bond yeiyo chromogenic geni kutyorwa, uye panguva imwechete kuparadza iyo cyclic komputa inoumba chromophore boka, nekudaro kudzikisira mvura yakasviba.
Inofananidzwa neyechinyakare klorini maitiro, ozone ine yakajeka mikana muindasitiri yemapepa. Iine yakasimba oxidizing chivakwa, kumhanya uye hapana kusvibiswa kune zvakatipoteredza. Izvo hazvigone chete kudzora pulp kuchenesa mutengo, asi zvakare kuderedza kusvibiswa kusvibiswa. Mazuva ano, kuchengetedzwa kwezvakatipoteredza kuri kuwedzera kukosha, ozone tekinoroji ine basa guru.
Post nguva: Sep-07-2019