3. Professional CAD Detailed Drawing Services

Our technical team provides complete detailed construction drawings for every gas storage project. All drawings are precisely drawn to scale, facilitating review and construction by designers, contractors, and supervisors. The drawings cover all details, including structural dimensions, material selection, welding joints, foundation embedments, and component configurations—professional, clear, and ready for direct implementation.

4.Dedicated Project Management System

Each project is assigned a dedicated technical lead and project manager who maintain constant alignment on design, schedule, and technical requirements throughout the process, ensuring accuracy in materials, processes, and construction plans. The project team guarantees high-quality, on-schedule progress through site surveys, detailed design, customized production planning, and on-site supervision. Additionally, they are available for real-time communication with all project stakeholders to provide professional technical support.

5. Direct Communication with Core Management

Throughout the project, you can communicate directly with the company’s core management team. This ensures efficient decision-making and rapid response, guaranteeing timely, precise, and controllable production, delivery, and installation.

Reception Area

This area is mainly used for receiving and temporarily storing feedstocks, such as food waste, plant residues, and green waste.

Some materials cannot be fed directly into the digester and require simple pretreatment first, such as dilution adjustment, mixing, crushing, or impurity removal. These processes are usually carried out in the reception area.

Storage Tank

The storage tank is mainly used for storing livestock manure and acts like a raw material warehouse.

When feeding is needed, the manure is pumped into the digester. After entering the fermentation system, the mixed material is usually called “slurry,” which then undergoes anaerobic digestion to produce biogas.

Gas Holder and Gas Upgrading Unit

The gas holder is mainly used to collect and store the biogas produced by the digester, making it a very important part of the entire biogas project.

The stored biogas can then enter a gas upgrading system for purification. In some projects, gas storage and upgrading are integrated into one system.

During the upgrading process, impurities such as hydrogen sulfide (H₂S) and carbon dioxide (CO₂) are removed to increase the methane content of the biogas, making the gas cleaner and more valuable for utilization.

Purified biogas can be used for many purposes, including:

• Injection into the natural gas grid
• Electricity generation
• Heat supply
• Compression into CNG fuel
• Liquefaction into LNG fuel, etc.

For example:

• Food waste
• Pig manure, cow manure, and chicken manure
• Agricultural waste
• Sludge

All of these materials can be used to produce biogas.

The working principle is actually quite simple.

You can think of it like this:

These organic wastes are placed into a large sealed tank with no oxygen inside. Then microorganisms slowly “eat” and break down the waste materials.

During this process, a combustible gas is continuously produced — and that gas is biogas.

This process has a professional name:

• Anaerobic fermentation
• Or anaerobic digestion

Put simply:

• “It’s a process where bacteria turn waste into gas in an oxygen-free environment.”

Biogas mainly consists of:

• Methane (CH₄): about 60%–65%
• Carbon dioxide (CO₂): about 30%–35%
• Nitrogen (N₂): about 0%–5%
• Hydrogen sulfide (H₂S): about 0%–2%

In everyday life, people have been using natural gas for many years, for example:

• Home heating
• Hot water supply
• Cooking
• Industrial fuel use

Natural gas is certainly convenient to use, but its biggest problem is obvious:

The more we use it, the less there is.

This is because natural gas is a non-renewable resource. Unlike biogas, it cannot be continuously produced. Once underground reserves are depleted, they cannot be replenished within a short period of time.

That is why many countries are now trying to develop new energy sources, and renewable energy like biogas is receiving more and more attention.

So why isn’t natural gas considered truly environmentally friendly?

Because when natural gas burns, it releases a large amount of carbon dioxide.

And carbon dioxide is one of the main causes of the greenhouse effect and global warming.

Although natural gas is cleaner than coal and produces less pollution, it is still a fossil fuel at its core. It still creates carbon emissions, so it cannot really be considered a fully green energy source.

Biogas, however, is different.

To put it even more simply:

• Natural gas is “consuming the Earth’s reserves,”
• while biogas is “recycling waste into energy.”

From an economic perspective:

• Although biogas systems require upfront investment — such as building anaerobic digesters and double membrane gas holders — their long-term operation is often less complicated than many people imagine.

Especially in areas with:

• Large livestock farms
• Abundant agricultural waste
• Concentrated food waste sources

Biogas projects have a major advantage in these areas because the raw materials are usually abundant and continuously available.

Natural gas is different.

Natural gas requires:

• Underground extraction
• Long-distance transportation
• Pipeline network construction
• Continuous supply infrastructure

All of this makes the overall cost relatively high, while also increasing dependence on limited underground resources.

So in the long run, many people believe that:

Biogas can be more economical and better aligned with the future direction of green and low-carbon development.

To sum it up:

Although both natural gas and biogas can be used as fuel and energy sources, they are fundamentally very different.

Natural gas represents traditional fossil energy,
while biogas represents a more future-oriented green energy solution.

Simply put:

Natural gas is “continuously consuming resources,”
while biogas is “continuously recycling waste into energy.”

As the world places more emphasis on environmental protection, carbon reduction, and sustainable development, biogas — which can both treat waste and produce energy — is being adopted by more and more industries.

1. Livestock and Poultry Manure (Pig, Cow, and Chicken Manure)

This is one of the most common feedstocks in biogas projects, especially on livestock farms where the supply is stable and available every day.

Its main disadvantage is that the “energy content is relatively low.” Most nutrients consumed by animals have already been absorbed, so there is less biodegradable material left for gas production.

However, it has one major advantage:
It cannot be discharged directly because it would cause environmental pollution and regulatory issues.

Using a biogas digester to treat manure therefore achieves two goals at the same time:

• Meeting environmental protection requirements
• Producing biogas as a by-product

In more serious cases:

If the pressure becomes too high and the safety system does not respond in time, the membrane may become excessively stretched.

Just like an overinflated balloon, this can lead to:

• Deformation
• Material damage
• Or even membrane rupture

Once the membrane is damaged, repair costs can be very high, and the operation of the entire system may be affected.

On the other hand, problems can also occur if gas is extracted too quickly or excessively.

In this situation, the pressure inside the tank will become too low.

To prevent vacuum conditions, the system will automatically draw in air.

However, once air enters the tank, it dilutes the biogas.

As a result:

• Biogas purity decreases
• Methane concentration becomes lower
• Combustion performance deteriorates
• Power generation efficiency is reduced

Therefore:

• Knowing the real-time gas volume inside the gas holder is extremely important.