IBASA Ai'ta Paso del Norte

PASO DEL NORTE

ASOCIACION PARA INVESTIGACION EN

TECNOLOGIAS APROPIADAS.

ENVIRONMENTAL

RESEARCH

TECHNOLOGY

ENGINEERING

Paso del Norte

IBASA

www.tratamientodeaguas.org.mx

Paying Waste:

Sewage Contains More Usable Energy

Than Scientists Thought

BY MIKE ORCUTT SCIENTIFIC AMERICAN 1 /11/2011

A new study finds a previous estimate of wastewater's potential as

a renewable energy source "a substantial underestimation"

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During anaerobic digestion of

organic matter

Through RAHFA's, the organic matter is degraded

anaerobically

• 90% is converted into biogas (Combination of

different gases, resulting from the metabolism

of different communities of anaerobic bacteria

that degrade organic matter)

• 10% mineralized sludge

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Diagram of the processPRETREATMENT

Entrance wastewater to the plant:

• Pretreatment removes all materials that can be easily collected,

like trash, tree limbs, leaves, branches, and other large objects.

Water Inlet

Lock Gate Sand Chamber

Bar Screen

IBASAPaso del Norte

Entrance wastewater to the plant

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Receiving Wastewater

• Reception: Sump Tank

a) Wastewater Collection to be pumped to tank distributor

b) It is the only point that requires electricity consumption

throughout the plant

Sump TankSand Chamber

Distribution Of Wastewater

• Tank Distributor

• a) Receiving Wastewater to be distributed by gravity to

Hybrid Anaerobic Upflow Reactor (RAHFA's)

Tank Distributor

RAHFASudge Tank

From the distributor tank, the water

is transported to the reactor

Water Inlet Pipe biogas capture

Water Outlet

Sludge Tank

Injectors

IBASA

Paso del Norte

Water Inlet In Hybrid Anaerobic Upflow

Reactor (RAHFA)

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Mineralized Sludge Tank

• Sludge Tank

- Receiving mineralized anaerobic sludge

Once sludge is separated from the lixiviates, sludge is completely dried and is ready to be used as a fertilizer.

- Lixiviates Tank

Receiving lixiviates from the sludge tank. The Lixiviates are drained by gravity to the sand chamber to mix with wastewater.

Product used: Fertilize

Mineralized Anaerobic SludgeIBASAPaso del Norte

The sludge produced in the reactor are disposed in the tank

sludge drying for further handling.

Tank Sludge Drying

Reactor sludge outlet

Lixiviates TankLixiviates Filter

Slotted pipe

ValveSludge

IBASAPaso del Norte

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Bell Biogas Storage

Metal frame with water seal to store biogas

Biogas Composition:

• 55-70% Methane

• 30-40% Carbon Dioxide

• 1-3% Hydrogen

• 1-5% other gases including hydrogen sulfide (H2S)

Bell Biogas Storage

Methane is a fuel with a heat content 38.3MJ / m3

(36273.4 BTU / m3)

Can be used to produce

• Heat

• Energy

• Lighting

• Mechanical power

Biogas Applications

Product used: Energy

POLISHINGAs a complementary treatment, an artificial wetland (swamp) with

local plants or a biofilters may be built, this reinforces the removal

of nutrients from the water such as phosphorus and nitrogen.

INLET TO THE SWAMP

OUTLET

Artificial Wetland:

• Channels Structure planted abundantly with local plants

• Removal of nitrates and phosphates

• Integrates the landscape as part of green areas of the home, hotel or

development

• Treated water can be used in fish farming projects

Artificial Wetland

Sand Filter

A structure with sand pebbles of diferent size.

Flowmeter outlet of treated water.

RAHFA’s Water Outlet

Artificial Wetland

Sand Filter

Treated Water Outlet

Compliance with Official Standards, it is usable in:

1. Agriculture

2. Nurseries

3. Green Areas

4. Car wash and facilities

5. Construction

6. Fish Farm

Product used Treated Water

Butchary Cd. Del Carmen, Campeche

SOME OF OUR EXPERIENCES

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BEFORE

TREATMENT

A

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Gobernadores Residential Development, Comalcalco,

Tabasco, México. 8,000 Population, 1,500 m2

Cuautla, Morelos Planta Centenario

Sand Chamber

Reception tank

RAHFA

Sludge Tank

Planta Buenavista, Morelos

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H

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PLANTS FOR

The certification process was covered in the voluntary audit program that

promotes PROFEPA (Federal Environmental Protection Agency) and was

made by the company Habitat Environment Group S.A. of C.V.

CERTIFICATION

FOR MORE INFORMATION:

Ing. Ricardo Castillo Ochoa

Office : + 52(656) 289 1616

Movil: + 52(656) 192 4755

Cd. Juárez, Chih. Mex

• www.tratamientodeaguas.org.mx

[email protected] del Norte

IBASA

Distribuidor Autorizado