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New type of composite carbon source
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The new composite carbon source is a novel carbon source supplement. It appears as a colorless, light yellow, or brownish liquid. It is composed of two or more compatible (non-reactive) single carbon sources from methanol, ethanol, butanol, ethylene glycol, propylene glycol, n-propanol, glycerol, acetic acid, sodium acetate, citric acid, sodium citrate, glucose, sucrose, and starch, making it a risk-free carbon source.
The new composite carbon source is mainly used to supplement organic carbon elements in the biological denitrification process of wastewater and sewage, with the following advantages.
1. The new composite carbon source is composed of various short-chain small molecules, which are beneficial for the proliferation and utilization of diverse microorganisms in biochemical systems.
2. Compared to traditional carbon sources like sodium acetate, the COD equivalent can be increased by two to three times, saving costs in transportation and usage.
3. The new composite carbon source produces low sludge volume, does not freeze outdoors in winter, and has stable, non-flammable properties, making it a good environmentally friendly carbon source.
4. Rapid startup: It enables microorganisms to quickly adapt to the environment and initiate metabolic processes, shortening the startup time of wastewater treatment systems.
5. Stable treatment effect: Due to its diverse components, it can continuously and stably provide carbon sources for microorganisms, ensuring the stability of wastewater treatment effects. Even with fluctuations in water quality and quantity, microorganisms can maintain good activity.
6. Strong adaptability: It is suitable for various types of wastewater treatment processes, such as activated sludge and biofilm methods, and can be adjusted according to different water qualities and treatment requirements.Mechanism of action
The new composite carbon source mainly provides carbon elements for microorganisms. In the biochemical reactions of wastewater treatment, microorganisms utilize the composite carbon source for metabolism, decomposing and transforming pollutants (such as nitrogen and phosphorus) in the wastewater.
Application fields
1. Wastewater treatment: Widely used in the treatment of municipal wastewater and industrial wastewater (such as dyeing, food processing, pharmaceuticals, etc.), especially playing a key role in the denitrification and phosphorus removal processes.
2. Environmental remediation: In the ecological restoration process of contaminated soils and water bodies, it provides carbon sources for microorganisms, promoting the natural degradation of pollutants.Implementation standards (HG/T5960-2021):
Project
Index
Chemical Oxygen Demand (CODcr)/(mg/L)
2.5*105
BOD₅/CODcr
0.55
pH value
4.0-9.0
Density (20℃)/(g/cm³)
1.00-1.26
Mass fraction of insoluble substances in water/% ≤
0.2
Freezing point/℃
Negotiated by both parties
Mass fraction of total phosphorus (as P)/% ≤
0.005
Mass fraction of total nitrogen (as N)/%
0.025
Mass fraction of chlorides (Cl)/% ≤
0.025
Mass fraction of sulfates (SO4)/%
0.025
Mass fraction of mercury (Hg)/% ≤
0.0002
Mass fraction of cadmium (Cd)/%
0.0005
Mass fraction of chromium (Cr)/% ≤
0.0005
Mass fraction of arsenic (As)/% ≤
0.0005
Mass fraction of lead (Pb)/% ≤
0.0005
The mass fractions of total phosphorus, total nitrogen, chlorides, and sulfates in the products listed in the table are calculated based on a chemical oxygen demand (CODcr) of 2.5×103 mg/L. When CODcr > 2.5×10⁵ mg/L, the actual chemical oxygen demand is converted to CODcr of 2.5×10'mg/L for the corresponding mass fraction calculation.
Company products:
New composite carbon source: Products with COD equivalent ≥ 250,000 can be customized according to customer requirements.
Product features:
The raw materials used for the product are by-products of bioenergy, ensuring better product quality.
Packaging and storage:
The product is a liquid and is transported and sold using tank trucks and ton barrels. The product should be stored in tanks made of materials such as PE or fiberglass.
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Qinbei Industrial Park, Qinyang City, Henan Province
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