PL424271A1 - Method for sterilization of sewage sludges and the system for sterilization of sewage sludges - Google Patents

Method for sterilization of sewage sludges and the system for sterilization of sewage sludges

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Publication number
PL424271A1
PL424271A1 PL424271A PL42427118A PL424271A1 PL 424271 A1 PL424271 A1 PL 424271A1 PL 424271 A PL424271 A PL 424271A PL 42427118 A PL42427118 A PL 42427118A PL 424271 A1 PL424271 A1 PL 424271A1
Authority
PL
Poland
Prior art keywords
sewage sludge
quicklime
cao
reactor
subjected
Prior art date
Application number
PL424271A
Other languages
Polish (pl)
Inventor
Paweł Potocki
Jarosław Turek
Original Assignee
Paweł Potocki
Jarosław Turek
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Paweł Potocki, Jarosław Turek filed Critical Paweł Potocki
Priority to PL424271A priority Critical patent/PL424271A1/en
Publication of PL424271A1 publication Critical patent/PL424271A1/en

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  • Treatment Of Sludge (AREA)

Abstract

Przedmiotem zgłoszenia jest sposób sterylizacji osadów ściekowych z udziałem wapna palonego (CaO), w którym to sposobie odwodniony osad ściekowy o zawartości suchej masy w zakresie od 15 do 35%wag. poddaje się hydratacji wstępnej w granulatorze, w którym łopatowym układem przerzucającym miesza się odwodniony osad ściekowy z wapnem palonym (CaO) w stosunku wagowym wynoszącym od 0,5 do 1,8 kg CaO/1 kg suchej masy osadu ściekowego utrzymując osad ściekowy w formie uziarnionej i nie dopuszczając do homogenizacji osadu ściekowego, prowadząc reakcję lasowania wapna palonego (CaO) na powierzchni ziaren osadu ściekowego; a następnie odwodniony osad ściekowy poddaje się hydratacji właściwej w reaktorze z przenośnikiem taśmowym prowadząc reakcję lasowania wapna palonego w całej objętości osadu ściekowego, znamienny tym, że odwodniony osad ściekowy poddany hydratacji właściwej w reaktorze z przenośnikiem taśmowym o regulowanej prędkości przesuwu ponadto podgrzewa się do temperatury powyżej 220°C, przy czym czas przesuwu osadu o temperaturze powyżej 220°C w reaktorze z przenośnikiem taśmowym nastawia się na co najmniej 20 minut. Przedmiotem zgłoszenia jest także układ do sterylizacji osadów ściekowych, w którym wykorzystywany jest powyższy sposób.The subject of the application is a method of sterilizing sewage sludge with the participation of quicklime (CaO), in which the method is dewatered sewage sludge with a dry matter content in the range from 15 to 35% by weight. subjected to pre-hydration in a granulator in which the shifting system mixes dehydrated sewage sludge with quicklime (CaO) in a weight ratio of 0.5 to 1.8 kg CaO / 1 kg dry weight of sewage sludge while maintaining the sewage sludge in a grained form and preventing homogenization of sewage sludge by carrying out a reaction of burning quicklime (CaO) on the surface of the sewage sludge grains; and then the dehydrated sewage sludge is subjected to proper hydration in a reactor with a conveyor belt by carrying out the reaction of burning quicklime in the entire volume of the sewage sludge, characterized in that the dehydrated sewage sludge subjected to specific hydration in a reactor with a conveyor belt with controlled speed is further heated to a temperature above 220 ° C, where the time the sludge is moving at a temperature above 220 ° C in the belt conveyor reactor is set to at least 20 minutes. The subject of the notification is also a sewage sludge sterilization system in which the above method is used.

PL424271A 2018-01-15 2018-01-15 Method for sterilization of sewage sludges and the system for sterilization of sewage sludges PL424271A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL424271A PL424271A1 (en) 2018-01-15 2018-01-15 Method for sterilization of sewage sludges and the system for sterilization of sewage sludges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL424271A PL424271A1 (en) 2018-01-15 2018-01-15 Method for sterilization of sewage sludges and the system for sterilization of sewage sludges

Publications (1)

Publication Number Publication Date
PL424271A1 true PL424271A1 (en) 2019-07-29

Family

ID=67384341

Family Applications (1)

Application Number Title Priority Date Filing Date
PL424271A PL424271A1 (en) 2018-01-15 2018-01-15 Method for sterilization of sewage sludges and the system for sterilization of sewage sludges

Country Status (1)

Country Link
PL (1) PL424271A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2612385B1 (en) * 1976-03-24 1977-09-01 Juergen Bozenhardt DEVICE FOR DRAINING MUD
JPS59102500A (en) * 1982-12-01 1984-06-13 Matsuda Takanobu Treatment of harmful sludge
CN103288323A (en) * 2013-05-20 2013-09-11 徐炳荣 Electric heating sludge treatment system
PL414238A1 (en) * 2015-10-03 2017-04-10 Przedsiębiorstwo Ekolobud Spółka Akcyjna Method for sanitation of sewage sludges and the system for sanitation of sewage sludges

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2612385B1 (en) * 1976-03-24 1977-09-01 Juergen Bozenhardt DEVICE FOR DRAINING MUD
JPS59102500A (en) * 1982-12-01 1984-06-13 Matsuda Takanobu Treatment of harmful sludge
CN103288323A (en) * 2013-05-20 2013-09-11 徐炳荣 Electric heating sludge treatment system
PL414238A1 (en) * 2015-10-03 2017-04-10 Przedsiębiorstwo Ekolobud Spółka Akcyjna Method for sanitation of sewage sludges and the system for sanitation of sewage sludges

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