Nūhou

ʻO ka resin Phenolic kekahi o nā mea waiwai nui i nā ʻoihana e like me nā pad brake a me nā abrasives. ʻO ka wai ʻōpala i hana ʻia i ka wā o ka hana ʻana i ka resin phenolic he pilikia paʻakikī no nā mea hana.

Phenolic resin production wastewater loaʻa nā kiʻekiʻe o nā phenols, aldehydes, resins a me nā mea ola ʻē aʻe, a loaʻa iā ia nā hiʻohiʻona o ke kiʻekiʻe kiʻekiʻe o ka organik, kiʻekiʻe toxic, a me ka pH haʻahaʻa. Nui nā ʻano kaʻina hana no ka mālama ʻana i ka wai ʻino i loko o ka phenol, a ʻo nā ʻano hana i hoʻohana nui ʻia e pili ana i nā ʻano biochemical, chemical oxidation method, extraction method, adsorption method, and gas stripping method.
 
I kēia mau makahiki i hala iho nei, ua puka mai nā ʻano hou he nui, e like me ke ʻano catalytic oxidation, ke ʻano o ka hoʻokaʻawale ʻana o ka membrane wai, a me nā mea ʻē aʻe, akā i nā hana hoʻomaʻemaʻe wai wai maoli phenolic resin, ʻoi aku hoʻi i mea e hoʻokō ai i nā kūlana hoʻokuʻu, ʻo nā ʻano biochemical ka hana kumu. No ka laʻana, ʻo ke ʻano hana lapaʻau wai ʻōpala phenolic resin.
ʻO ka mea mua, e hana i kahi mālama condensation ma ka wai ʻōpala phenolic resin, e hoʻihoʻi a hoʻihoʻi i ka resin mai ia mea. A laila, hoʻohui ʻia nā kemika a me nā catalysts i ka wai ʻino phenolic resin ma hope o ka mālama condensation mua, a hana ʻia ka mālama condensation lua e wehe i ka phenol a me ka formaldehyde.

Hoʻohui ʻia ka wai ʻōpala phenolic resin ma hope o ka hoʻomaʻamaʻa condensation lua me ka wai ʻōpala, hoʻoponopono ʻia ka pH waiwai i 7-8, a ʻae ʻia e kū mālie. A laila e hoʻomau i ka hoʻohui ʻana i ka ClO2 e hoʻoheheʻe i ka wai ʻino e hōʻemi hou i ka ʻike o formaldehyde a me COD. A laila e hoʻohui i ka FeSO4, a hoʻololi i ka waiwai pH i 8-9 e wehe iā ClO2 i lawe ʻia e ka pae mua.
E kau ʻia ka wai ʻōpala phenolic resin i hoʻomaʻamaʻa mua ʻia i ka SBR biochemical treatment e wehe i nā mea haumia i ka wai ma o nā microorganisms.
Hoʻomaʻamaʻa mua ʻia ka phenolic resin production wastewater, a laila hana hou ʻia, i hiki i ka wai ʻino ke hiki i ka maʻamau.


Ka manawa hoʻouna: ʻAukake-15-2021

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