composting slupsk

8/13/2019 Composting Slupsk

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COMPOSTINGOF SLUDGE AND WASTE GREEN MATTER

SUPSK WASTEWATER TREATMENT PLANT

COMPOSTING

ODOCIGI

S KU SP

OF SLUDGE AND WASTE GREEN MATTER


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Waste is the most plentiful, richand unexhausted natural resource in the world.It is a by-product of human consumption.If we do not acknowledge the need and do not utilize wasteas a valuable resource, there is a real

danger of unsettling the balance of the ecosystem.

Composting is the way forward !!!


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Why composting?

A reduction in the quantity of wasteComposting is a method of stabilizing waste.In the process of composting, 2/3 of the carbonis metabolized as energy and CO2. Compostingalso reduces humidity. Consequently, from20.000 tons of waste material we obtain 10.000tons of compost.

Composting is recyclingThe ecological aspect of composting isan indisputable fact. From waste we retrievenutrients and organic material singularlynecessary in, among other fields, agriculture.Unwanted waste becomes a sought-afterproduct.

An economic enterpriseComposting brings a reduction in the economiccosts of sludge. In the case of the Supsk

WWTP there has been a reduction of 30%.

A transfer of proven technologyIt is difficult to describe composting as a noveltechnology. Composting is a technologicallyproven process, functioning well in the climaticconditions of Poland.

Social costsThe production of sludge constitutes 22% of allmunicipal waste arising in the city of Supsk.The deposit of waste in storage areas curtailsits term of usage, and therefore influences thecosts of building new storage areas with

taxpayer's money.Composting promotes the development ofsegregationThe functioning of composting in Supsk has soresulted that, in the process of beingcomposted, green waste has been segregatedat the point of origin. The free collection of cleanwaste for composting has made it so, thatsegregation has become very commerciallyviable for producers of this type of waste.

Accordance of the project with international,national, provincial and regional

environmental projectsFrom the EU directive, through the ecologicalpolicy of the Republic of Poland, provincial andlocal environmental programs, and finally in theprograms of action of ecological funds,composting, as a form of recycling, has priorityeverywhere. Preparing the financial propositionsto the ecological funds may with ease indicatethe compatibility of this enterprise with the eco-development strategies at every levelof administration and organization.

The location of compostingWastewater treatment plant, in which the

majority of waste material is produced, are thebest locations for composting. Anotherimportant point is the technological andlaboratory services together with social,administration and logistical facilities whichalready function at treatment plant.


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PROJECTED YIELD OF THE INSTALLATION 20,000 tons / annum

TOTAL COST OF THE INSTALLATION 5.4 m PLN

TERM OF CONSTRUCTION 2000 - 2003

ADMINISTRATOR OF INSTALLATION / INVESTOR "Wodocigi Supsk" sp.

PURCHASED EQUIPMENT

1

2

E - Small loaderTUR 5

D - LoaderFADROMA -34 B

C - Grinder JENZ AZ 30-80

B - Compost screenTIM Envipro TS 2000

A - TurnerBACKHUS 15.50

D

A

E

COMPLETED OBJECTIVES

3 - composting maturation site22 - open sided steel structure9 000 m2

1 - reinforced concrete surface8 100 m


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o.o.

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4

FINANCIAL

INVESTMENT STRUCTURE

C

B

Supsk ProvincialEnvironmental Protection

Fund - subsidy2%

EKOFUNDUSZsubsidy

28%Danish

EnvironmentalProtection Agency

- subsidy4%

EnvironmentalProtection Fund - Gdask

- preferential loan11%

Wodocigi Supskour own resources

55%

Investment Process

4 - materials depot


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Elements of the controlledtechnological process

1. Reception of the compost materialsPractically any organic waste receptive tobiological biodegradation, and not contaminatedabove normal levels with heavy metals may becomposted.

2. FragmentationThe delivered green waste is collected ina designated box, and is next fragmented in theJENZ AZ 30-80 into pieces of 1-7cm.

3. Formation of the initial prismExamined in the laboratory, the materials,according to composition, are mixed inappropriate proportions by the loader.The proportion is determined on the basisof humidity and the C/N ratio of that particularmaterial. To the initial prism is added a fractionof the waste from the sieve.

4.The hot phase of the compostingAccording to the climatic conditions, this phaselasts 4-8 weeks. The compost mixture issubjected in this time to intensive rotation bya specialised machine, the BACKHUS 15.50,with the specified purpose of stirring thecompost materials, homogenisation, airing andloosening.Daily monitoring is conducted ofthe temperature in the prisms and inaccordance with the technological conditionsthe prism is rotated at a rate of 1-3 timesa week.

5.Sieving of the fresh compostThe sieving of the compost after the hot phasetakes place in the TIM 2000 sieve throughperforations of 20mm. A small fraction of thewaste is brought to maturation, the waste isreprocessed.This process has the aim of categorising thecompost, and recovering the material which isnot broken down into a suitable form, which

is equally valuable material for injecting intothe material of the prisms.

6.Maturation of the compostThe sieved raw material is stored in coveredboxes for 4-6 months. In this time it is rotated1-2 times a month by the loader with the aim ofeliminating intense oxidisation. The maturecompost is characterised by stablephysicochemical parameters tested in the workslaboratory.

7.Laboratory supervisionThe Supsk WWTP is equipped withprofessional analytical laboratory. Examinationsare performed on a range of works norms,incorporating investigations into theconcentrations of heavy metals by the ASAmethod. Testing is conducted at every stageof controlled composting process. Data arerecorded in reports and on certificates for eachindividual prism.

8.Supervised distribution of the compost

The mature compost is marketed under thetrade name of BIOTOP. The recipient receivestogether with the compost full documentationconcerning the procedure of the productionprocess of that given batch of compost, andinstructions for application and attestation.We also provide free agro-technical consultationfor our greatest recipients incorporating control

of the efficacy of fertilisation.9.Tailoring of the compostIt is a forecast option for implementation inthe coming years. We want to formulate acommercial offer for packaged compost toclients' special requirements, for instance forthe cultivation of acidophilic plants, flowers, etc.

centrifugeprefermented sludge

20 % dry mass

centrifuged sludge - 13 000 tons / annum

leaves + branches + trees and green waste - 3 000 tons / annum

straw - 3 000 tons / annum

bark - 1 000 tons / annum

Grinder JENZ AZ

CONTROLLED DISTRIBUTIONExploitation in plant production

MATERIAL STORE

Laboratory monitoringof the compost material

Loading of prepared BIOTOP compostfor collection by clients

Periodical examination of soil and of the efficacy of fertilisation

BLOCK DIAGRAM

Hot phase of composting

FRAGMENTATION

Gathering of data on recipients


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Transport of materials and formation of the initial prismswith the FADROMA -34 B loader

Site of active composting

Prism Nr ..

Purposeful of the purification of gas for the biofilter

Biofilter

Cambered sanitary drainage for pumping inside the t reatment works

Rotation by the turnerBackus 15.50

HOT PHASE OF COMPOSTING - 6 WEEKS

Transport of fresh compost for screeningComposting screen TIM TS 2000

Diversion of large pieces > 20 mmto recomposting

his fraction has the function for injectioninto new compost prisms Screened fraction < 20 mm

Transport of sievedcompost for maturation

MATURATION 4-6 MONTHS

SCREENING

2Storage boxes Area 2 000 m

Determinationof the compost mixture

Daily monitoringof process parameters

Independent Certification of the prisms

Laboratory examinationof batches of stored compost

Data register

Writing of quality certificates and instructions for application

OF THE CONTROLLED PROCESS OF COMPOSTING AS THE SUPSK WWTP

Purposeful of the tailoringof units of compost

Mixedandpackedcompost

Compost

forconiferoustrees

Lawncompost

Flowercompost

Periodical certification of compost in the independent laboratory

Certification:ResearchInstituteandC

ertification

towardtheattainmentofEKOZNAK

Reception of additional incrementsfor the tailoring of the compost

PURPOSEFULTAILORING

The controlled work of composting

The controlled technological process

Laboratory research

destinations of BIOTOP compost


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BIOTOP compostCorrect attributes

of the compostaverage

valuemin - max

value

firmnorm

NormBN-89 9103-09compost I class

Features:

brow n co lour, fragrance of fresh garden so i l , rubble structur e for sprinkl ing

Dry mass [%] 50 40 - 70 > 40 > 40

Organic dry mass [%] 50 45 - 60 > 40 > 40

Nitrogen [%] 2,0 1,5- 3 > 1,4 > 0,8

Phosphorus [%] 1,0 0,9 - 3 > 0,9 > 0,6

Potash [%] 0,2 0,15 - 0,25 > 0,2 > 0,2

Acidity [pH in H2O]

7,4 7 - 7,8 6,5 - 8 6,5 - 8

Molecular quantity[mm]

0 - 20

0 - 25 < 20 < 25

Inclusion of glass [%] not occurent absent < 0,5

Inclusion of heavy metals, not more than:

Cadmium Cd[mg/kg d.m.] 0,8 0 - 2,5 < 5 < 5

Chrome Cr [mg/kg d .m.] 5,0 0 - 25 < 100 < 300

Copper Cu [mg/kg d .m.] 40 1 - 80 < 300 < 300

Nickel Ni [mg/kg d .m.] 9,5 1 - 20 < 50 < 100

Lead Pb [mg/kg d .m.] 20 2 - 40 < 100 < 350

Zinc Zn [mg/kg d .m.] 600 80 -1000 < 1500 < 1 500

Mercury Hg [mg/kg d .m.] < 0,01 0 - 0,1 < 1,0 < 5

Sanitary index

Salmonella sp. Not affirmed absent not permitted

Parasites [pc./kg d.m.]

Ascaris sp., Trichurissp.

Toxocara sp.

< 10 < 20

The quality of BIOTOP compost

Not affirmed


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Quality and composition of the compost

COMPOSITION OF BIOTOP COMPOSTOMPOSITION OF IOTOP COMPOST

STRAW32%

STABILIZEDSLUDGE

32%

STABILIZEDSLUDGE

3STABILIZED

SLUDGE32%

BARK WASTE11% GREEN WASTE

25%

COMPOSITION OF BIOTOP COMPOST


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ATTESTED ORGA

INCLUSIVE OFINGREDIENTS

Did you know?

BIOTOP compost applied at

15 tons/ha accounts, interms of contribution ofnutrients NPK, for mineralfertilization to the value of1000 PLN

COMCOM

A REVELATION IN INTENS

IMPROVES FERTILITY

FULLY SAFE FOR

BIOTOP IS THE CHEAPESTFOR ALL

AVAILABLE THROUGH

BIOTOP IS A GUARAN

BIOTOP is applied to improvingphysical and biological qualitiesand chemical components of thesoil in the primary production of

a plant.Above all it is supremely suited toshaping green areas of town,lawns, pitches and golf courses,in forest management, thecultivation of ornamental plants,in nurseries, communal farming,conservation of railway and roadembankments, dikes, therecovery and recultivation ofdegraded sites and rubbish tips.

Square planted with BIOTOP compost(Supsk, Sienkiewicza Street)


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NIC FERTILIZER,

NUTRITIVEFOR PLANTS

OSTOST

VE PLANT PRODUCTION

AND CONDITIONS SOIL

THE ENVIRONMENT

FERTILIZING MATERIALSOIL TYPES

OUT THE WHOLE YEAR

TEE OF A GOOD CROP

The standards of qualitydescribed in the Works

Documentation of Normsguarantee an improvement in

physical qualities and chemicalcomposition of soil.

Equally, they protect against aharmful influence on the

environment

Dosage:

In a general pool of fertilizersapplied in the aforementionedapplications, a single dose of

BIOTOP compost shouldn'trequire the incorporation of morethan 170kg of clean nitrogen on

1 ha of agricultural land

(91/676/EWG) This represents15-20 tons of compost perhectare.

Terms of Appl icat ion

-in spring before seeding orplanting

- in autumn for the cultivation ofwinter plants; in case of secondary

harvest, apply the fertilizer in thepost-harvest period.

Detai led in format ion is

contained in the Instruc t ions for

appl icat ion and storage of the

fert i l iser available from the

pro duc er of BIOTOP.

Our Offer

Conditions of production continuously supervised(prism temperature monitor)


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Centrale: (0-59) 842 60 5157Secretary: (0-59) 842 29 63Composting: (0-59) 842 92 29Fax: (0-59) 842 22 07e-mail [email protected]

Wodocigi Supsksp. z o.oul. Orzeszkowej 176-200 SUPSK

www.wodociagi.slupsk.pl

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TOWN PLAN OF SUPSK

Pozna

composting slupsk

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