The New Generation System for Reuse/Recycle/Recovery of ...

the New Generation System for

Reuse/Recycle/Recovery of Municipal Solid Waste

based on Hydro-Mechanical separation and Multiphase Biological treatment

N.R.E. research - Area Science Park Trieste – Italy [email protected]. research - Area Science Park Trieste – Italy [email protected]

2N.R.E. research - Area Science Park Trieste – Italy [email protected]. research - Area Science Park Trieste – Italy [email protected]

• NRE Research is an Italian company established in Area Science Park in Trieste specialized in research and development, design, construction and implementation of technological systems for non-thermal waste treatment with energy production from renewable sources.

• We offer solutions for:- Micro Biogas Plants for Farms;- Used Tyre Treatment;- Reuse/Recycling/Recovery of Municipal Solid Waste, our

WASTE BUSTER PLANT;- Other special waste treatment solutions.

3

• NRE Research developed and implemented a New Generation System for Municipal Solid Waste Reuse/Recycle/Recovery based on hydro-mechanical separation.

• Engineers from our company studied a new system for this process adding new lines for separation that allows recover of 90% of recyclable materials by type.

…and not only…


The Waste Buster Plant:The Waste Buster Plant:New MSW SolutionNew MSW Solution

Let’s see the actual waste management situation…


• Landfilling (pollution, limited capacity, new regulations)

• Thermal Solutions- Incinerators : (expensive, public opposition, needs 24/7 waste flow);- Gasification + Plasma + Pyrolysis (expensive, no references, laboratory

facilities);- Refuse Derived Fuel (treats the dry materials only, not the organics);

• Mechanical Biological Treatment- Dry separation + Aerobic composting or Anaerobic Digestion (no real

separation, low compost quality, no ROI, failures).

MAIN UNSOLVED PROBLEM: MAIN UNSOLVED PROBLEM: HOW TO SEPARATE AND TREAT THE BIODEGRADABLE ORGANICSHOW TO SEPARATE AND TREAT THE BIODEGRADABLE ORGANICS

Current solutionsCurrent solutions

Composting:• No energy production;• Fits to highly pre separated organic waste;• Usually poor quality compost – no demand.MBT AD:• Fits pre separate waste;• Standard anaerobic digesters enable ~50% energy recovery;• Limited success with MSW.


MSW biological treatmentMSW biological treatmentincludes: Composting & MBTincludes: Composting & MBT-- ADAD

How can we improveHow can we improvethe MSW treatment?the MSW treatment?

• Minimizing residual – high separation and recovery capabilities – Directive compliance

• Maximum waste usage – high energy output• Control outlets quality – Increase plant value – Meets local

regulation• High availability and flexible waste feed• Low cost maintenance and operation


Minimize:• The landfilling of waste;• The pollution;• The disposal costs.Maximize:• The recycling rate;• The MSW drift rates;• The production of renewable energy.Use an Alternative Advanced technology:• That reduce costs;• That reduce CO2 emissions;• Simplifies sorting and process flow by liquefying the waste;• A unique multistage anaerobic treatment.


Innovative SolutionInnovative SolutionMaterials FlowMaterials Flow

8

Heavy Fraction

Light Fraction

Food waste

Plastic

Paper

Cardboard

Metals

Glass

Stone/Other

Other

Non Ferrous

Ferrous

Glass

Biogas

Bioorganic

Plastic

Liquid Separation Process

AnaerobicProcess

H2O

Fertilizer

Waste input

To Landfill

Materials Output


NRE research InnovationsNRE research Innovations


Organic/Plastic SeparatorOrganic/Plastic Separator

In coming “Light Fraction”

Plastic

Vertical Pneumatic separator

Large organic recycled to the SRS to further brake down

Small organic to next anaerobic stage

Screen


Smart Reactor Smart Reactor

• 3 phase separation in the reactor;• Bioorganic hydrolyzed -complex polymeric matter into

monomer;• No bioorganic losses – Maximize gas yield;• High separation - plastic and inorganic are bioorganic free;• Designed to handle row waste – can deal with

commercial/farm waste without presorting;• Robust separation system.


Separation Separation

SEDIMENTATION:• Suspended solids with specific gravity greater than

that of water tend to settle down by gravity.- force of gravity: Fg=ρpgVp

- buoyant force: Fb=ρgVp

- Low rate laminar flow ≈ 0.05m/sec

BUBBLE ADDITION:• Micro bubbles nucleation on particle surface to

increase the buoyant force of light materials;• Higher separation rate;• Optimizing separation performance.

– Assumptions:• Fine bubble - 20 to 50 micron;• Non turbulence flow.


Multistage anaerobic systemMultistage anaerobic system

• A single anaerobic element is not sufficient to address the task;• Therefore, an inline multi-reactors design is needed, each stage not only acts

as a digester/separator but also prepares the material for the following treatment;

• Maximize organic usage (about 90% utilisation to produce biogas).


Stages of Anaerobic SystemStages of Anaerobic System

1° Smart Anaerobic Stage - Hydrolysis - Braking large organic polymers chains into smaller monomers and dissolve them into solution; the complex organic molecules are broken down into simple sugars, amino acids, and fatty acids

2° Anaerobic Digester - Acetogenesis - converts the products of the first phase to simple organic acids (acetic, propionic, butyric acid and ethanol); Generation of bio-gas ≈ 25%; Solid content digester (5-10%);

3° High rate reactor (UASB) - Methanogenesis -


Converts the acetic acid and ethanol into methane and carbon dioxide - Biogas.

• Over 90% organic load reduction• 3 phase separation:- Biogas;- Effluent (waste water);- Solid (sludge).

Biological treatment Multistage (3 lines)Biological treatment Multistage (3 lines)

1. Plastic separation

2. 1st AD the SRS

3. 2nd AD

4. 3rd AD (high rate-UASB)

1 .

8 .

2 .

3 .

6 .

4 .

5 .

7 .

From

Separation

Stage

Patent pending Application No.6146811


5. Polisher (SBR)

6. Sludge dewatering

7. Gas holder

8. CoGenerator


What about the WATER?What about the WATER?

• The water of the plant works in closed-circuit;

• After the biological treatment the excess water passes through acleaning aerobic treatment (SBR) which improves its quality (BOD <50 ppm).

• After purification the excess water can be used to clean the system, containers , or other uses depending by national and local regulations.

• The amount of excess water is rather low: amounts to approximately 5% of the organic material input.

SummarySummary

• High separation performance – Meets the EU and nationals directive;

• Maximize energy recovery (40%+);• Maximize recyclable materials recovery;• Minimize residual waste;• Modules can suits any size and waste composition;• High Return of Investment ROI;• Continues waste to energy conversion;

• ECO–sustainability = Sustainable ECOlogy and ECOnomy.


• Recovery of 80-90% of recyclable• Cleaner organic material flow• Multi stage anaerobic treatment• Water production• Biomass (clean compost)• Production of Green Electricity • Saving C02 (Carbon Credits)• Fits any MSW stream• Robust and scalable process • High energy yield (up to 40% more

biogas)• High % of methane in the biogas

(up to 75%)

• Low construction costs• Low management costs• High economical gain• Modular system• Creating new jobs• Landfill reduction• Total absence of pollution• Environmental Friendly• “Cold” Technology in compliance

with regulations (National, European Community, Kyoto)


Conclusions:Conclusions:NRE System HydroNRE System Hydro--Mecchanical RecoveryMecchanical Recovery

• Create local JV - Sell turn key plants- Customers : Landfill Operators, Local Municipalities;- Build the project team per plant-order with local partners.

• BOT / BOO- Local JV for construction and operation;- Potential partners: Municipality, Operators, Engineering

companies.


Business Model:Business Model:

Tipping feeRecyclingElectricity

Carbon credit

Less Landfill TaxationLow construction costsLow management costs

MoreProfits


NRE SolutionNRE SolutionTurn Waste into ProfitTurn Waste into Profit

Thank youThank you


[email protected]

+39 040 375 65 20

+39 040 375 65 21

http://www.NREresearch.com

Date post:	04-Nov-2021
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