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Biogas Models

An easy disposal of organic wastes that is eco-friendly because combustion of biogas does not cause much pollution.

Biogas Image

Biogas has been defined in various different ways;

All the definitions are in agreement that biogas is derived, produced or generated from decomposed waste materials, organic matter, waste water, and solid waste or plant crops. In absence of oxygen. Biogas is produced through the processing of various types of organic waste such as food waste, human waste, sewage, paper waste, manure, green waste, biodegradable plastic, and slaughterhouse.

Biogas production also helps in the easy disposal of organic wastes and is eco-friendly because combustion of biogas does not cause much pollution. It has high calorific value and is a non-polluting renewable source of energy Biogas production starts from the arrival of feed-stocks at the biogas plant.

OUR MODELS

BZB Model

A concrete Design Model (CONCRETE )

BZB PLASTIC Model

A Polythene / Flex / Tubular Biogas

BZB AKUT Model

A Concrete / Brick / Masonry Biogas

BIOGAS AS AN ENERGY SOURCE

Biogas is a fuel gas produced by anaerobic fermentation of organic material by methane producing bacteria. Methane is produced in strictly anaerobic (oxygen-free) sealed conditions by particular bacteria consortium.

Biogas has the following characteristics.

  • Generally, it contains 50-70% methane,
  • Major gas component is methane (CH4), CO2 and H2O,
  • Minor gas component is H2, N2 and H2S,
  • It is carbon neutral

Biogas has calorific value similar to LPG and natural gas, although the value is only about half of that of fossil fuels. Biogas can be utilized in the same way as LPG or natural gas when modified cooking stoves or modified engine-generators are applied.

SERVICING YOUR BIOGAS

Eco friendly biogas production

HOW TO EFFICIENTLY SERVICE AND MAINTAIN BIOGAS DIGESTER

Maintaining a biogas plant involves;

  • Doing minor repairs to the equipment,
  • Changing its oil as needed,
  • Removing debris from organic matter that falls to the bottom of the tank,
  • Solving problems in the process
  • Removing debris from organic matter that falls to the bottom of the tank
  • Breaking and removal of any scum formed at the top of the slurry.
  • Leakage test trouble shooting along the gas line.
  • Inspection of any elogged/blocked joints at the utilization point
  • Check the air blower on monthly basis.

COMPARING BIOGAS FUELS

FUEL TYPEVALUEUNITFORM
LPG92-94MJ/m3Gas
Methane35.9MJ/m3Gas
Natural Gas37-39MJ/m3Gas
Kerosene36.7MJ/LLiquid
Diesel Oil37.7MJ/LLiquid
Coal22-26MJ/KgSolid
Biogas20-30MJ/m3Gas
Firewood*10-20MJ/KgSolid

There are two types of biogas systems depending on the moisture content of the feed-stocks;

  1. Wet biogas system– it’s the most common biodigester style. A wet biodigester or low solids AD system generally processes feedstock with less than 15 percent solids content
  2. Dry biogas system – Dry biodigesters keep the substrates in a stackable form and remain in a pile during the digestion process. Food waste is mixed with green wastes such as yard debris for structure and porosity and is put into a long, rectangular vessel in a stack. The vessel is then sealed tight and warmed.
BIOGAS PRODUCTION BOOSTER

Anaerobic digestion is a biological process during which complex organic matter is decomposed in the absence of oxygen, by various types of anaerobic microorganisms. (BUY Biogas Production Booster) The process of biogas production depends on various parameters such as

  • temperature,
  • concentration of materials and
  • pH.
BIOGAS ACCESSORIES
Desulferizer with gauge

These conditions significantly affect bacterial activity

The rates of methane production are highly sensitive to temperature changes.

Generally, sulfate reduction also occurs in the biogas digester, producing hydrogen sulfide. Hydrogen sulfide needs to be removed since it is corrosive and damages pipes, valves, meters, and engines and generators. (Buy Desulphiriser)

BIOGAS PRODUCTION BOOSTER
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Manure

The raw materials used for the generation of biogas in our biodigesters include;

  • Vegetable waste & Solid leftover food
  • Milk products
  • Roots, tubers, peels
  • Livestock waste such as cow dung, poultry droppings, etc

OUR BIOGAS ACCESSORIES

DIFFERENT TYPES OF BIOGAS

The table below gives a first comparison of the different types of biogas

FactorsFixed domeFloating drumTabular designPlastic container
Gas storageInternal Gas storage up to 20 m³ (large)Internal Gas storage drum size (small)Internal eventually external plastic bagsInternal Gas storage drum sizes (small)
Gas pressureBetween 60 and 120 mbarUpto 20 mbarLow, around 2 mbarLow around 2mbar
Skills of contractorHigh; masonry, plumbingHigh; masonry, plumbing, weldingMedium; plumbingLow; plumbing
Availability of MaterialyesYesyesYes
DurabilityVery high >20 yearsHigh; drum is weaknessMedium; Depending on chosen linermedium
AgitationSelf agitated by Biogas pressureManual steeringNot possible; plug flow typeEvtl Manual steering
Sizing6 to 124 m³ digester volUp to 20 m³Combination possibleUp to 6 m³ digester vol
Methane emissionHighMediumLowMedium

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ADVANTAGES OF USING BIOGAS

Eco friendly products
  • Biogas is Eco-Friendly.
  • Biogas Generation Reduces Soil and Water Pollution.
  • Biogas Generation Produces Organic Fertilizer.
  • It’s A Simple and Low-Cost Technology
  • It encourages a circular economy.
  • Healthy Cooking Alternative for Developing Areas.

SOURCES OF BIOMASS

The raw materials used for the generation of biogas in our biodigesters include;

  • Solid leftover food
  • Vegetable waste
  • Milk products
  • Roots, tubers, peels
  • Livestock waste such as cow dung, poultry droppings, etc

GET AN EXPERTS OPINION

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