Difference between revisions of "Primary processing"

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<onlyinclude>'''Pre-treatments''' are used to prepare raw materials so that they can be processed by core technologies.</onlyinclude>
<onlyinclude>'''Primary processing''' of biowaste results in intermediate chemicals and/or materials which will then go into the [[secondary processing]] or [[hybrid processing]] after which the final product is obtained. While some technologies are used exclusively for the purpose of primary processing, others (such as the [[Hybrid processing#Separation_processes_and_technologies|separation processes and technologies]]) can be utilised in both primary and [[secondary processing]] which places them into [[hybrid processing]].</onlyinclude>


== '''Biochemical pre-treatments''' ==
== Biochemical processes and technologies ==
* Enzymatic
* [[Anaerobic digestion]]
* [[Composting]]
*[[Enzymatic processes]]
* [[Insect farming]]


== '''Chemical pre-treatments''' ==
== Chemical processes and technologies (these might be [[hybrid processing]]) ==


* Hydrolysis
* [[Hydrolysis]]
** [[Hydrolysis#Acid|Acid]]
**[[Hydrolysis#Alkali|Alkali]]
** [[Hydrolysis#Salt|Salt]]
*** [[Hydrolysis#Metal_salts|Metal salts]]
*** [[Hydrolysis#Sulphite_salt|Sulphite salt]]
** [[Hydrolysis#Solvent|Solvent]]
*** [[Hydrolysis#Organosolv|Organosolv]]
** [[Hydrolysis#Subcritical_water|Subcritical water]]
* [[Ionic liquids]]
* [[Oxidation]]


== '''Physical pre-treatments''' ==
== Physical processes and technologies (these might be [[hybrid processing]]) ==


* Densification
* [[Densification]]
* Pressure-densification
*[[Sizing]]
* Sizing
**[[Sizing#Chipping|Chipping]]
* Chipping
**[[Sizing#Grinding|Grinding]]
* Grinding
* [[Microwave treatment]]
* Steam explosion
* [[Steam explosion]]
* [[Ultrasonication]]


== '''Separation''' ==
== Thermochemical processes and technologies ==


* Physicomechanical separations
* [[Ammonia fibre expansion]]
** Centrifugation
* [[Gasification]]
** Filtration
* [[Hydrothermal processing]]
*** Membrane Filtration
* [[Pyrolysis]]
*** Pressure filtration
* [[Torrefaction]]
*** Ultrafiltration
** Sieving
* Physicochemical separations
** Chromatography
** Dialysis
** Dissolution, Crystallisation, flocculation, precipitation
** Distillation
** [[Drying (evaporation)]]
*** Air drying
*** Nitrogen drying
*** Freeze drying
*** Thermal drying
*** Vacuum drying
**Extraction
***Acid treatment
***Alkali treatment
**Field-Flow fractionation (FFF)


== Thermochemical pre-treatments ==
== Other processes and technologies ==
 
*[[Pulping]]
* Ammonia fibre expansion
**[[Pulping#Chemical_pulping|Chemical pulping]]
* Dry torrefaction
*** [[Pulping#Dissolving_pulp_and_organosolv|Organosolv]]
* Wet torrefaction
*** [[Pulping#Cold_soda_pulping|Soda]]
*** [[Pulping#Sulphate_pulping_(Kraft)|Sulphate]]
*** [[Pulping#Sulphite_pulping|Sulphite]]
** [[Pulping#Hybrid_pulping|Hybrid pulping]]
*** [[Pulping#Chemi-thermo-mechanical_pulping_(CTMP)|Chemithermomechanical pulping (CTMP)]]
***[[Pulping#Neutral_Sulfite_Semi_Chemical_Pulping_(NSSC)|Neutral Sulfite Semi Chemical pulping (NSSC)]]
**[[Pulping#Mechanical_pulping|Mechanical pulping]]
*** [[Pulping#Refiner|Refiner]]
**** [[Pulping#Refiner_mechanical_pulping_(RMP)|Refiner mechanical pulping (RMP)]]
****[[Pulping#Thermomechanical_pulping_(TMP)|Thermomechanical pulping (TMP)]]
*** [[Pulping#Groundwood|Groundwood]]
**** [[Pulping#Pressure_groundwood_(PGW)|Pressure groundwood (PGW)]]
****[[Pulping#Stone_groundwood_(SGW)|Stone groundwood (SGW)]]
**** [[Pulping#Thermal_groundwood_(TGW)|Thermal groundwood (TGW)]]

Latest revision as of 12:58, 9 February 2022

Primary processing of biowaste results in intermediate chemicals and/or materials which will then go into the secondary processing or hybrid processing after which the final product is obtained. While some technologies are used exclusively for the purpose of primary processing, others (such as the separation processes and technologies) can be utilised in both primary and secondary processing which places them into hybrid processing.

Biochemical processes and technologies

Chemical processes and technologies (these might be hybrid processing)

Physical processes and technologies (these might be hybrid processing)

Thermochemical processes and technologies

Other processes and technologies