Small Footprint Municipal Wastewater Treatment Plant 1-30T/H Domestic Wastewater Treatment Equipment

10 t/d EO electrochemical wastewater treatment equipment for domestic sewage of residences, apartments, schools, hospitals, offices, malls, hotels, restaurants & public toilets

Quick Details

Domestic sewage is mixed wastewater generated from daily urban and rural activities, with diverse sources primarily including residential laundry, kitchen and bathroom discharges, commercial services, and drainage from some public facilities. It is typically characterized by moderate concentrations of organic pollutants, high levels of ammonia nitrogen and total phosphorus, significant suspended solids (SS) content, and a large presence of pathogenic microorganisms (bacteria, viruses, etc.). Compared to industrial wastewater, domestic sewage generally has good biodegradability (a relatively high B/C ratio), but exhibits significant fluctuations in water quality and quantity over time (daily and seasonally) and is prone to shock loads. Although traditional treatment processes (such as A²/O, oxidation ditches, SBR and their variants) are mature, they often face practical operational challenges including large footprint, reliance on chemical agents for advanced phosphorus removal leading to increased sludge production, limited resistance to shock loads, and effluent quality being significantly influenced by seasonal variations and operational management levels. Particularly in regions facing increasingly stringent discharge standards or limited land resources, upgrading, retrofitting, and expanding traditional processes encounter bottlenecks.

Addressing the core trends in domestic sewage treatment—"limited potential for conventional process upgrades, high sludge yield from chemical phosphorus removal, growing demand for shock resistance and advanced purification"—the CQDHX SERIES EO Electrochemical Oxidation Equipment, developed and manufactured by our company (AA&SS AQUA HITECH CO., LTD.), demonstrates unique advantages in advanced nitrogen and phosphorus removal, efficient disinfection, and elimination of refractory trace organic compounds. Through electrochemical action, the equipment generates highly oxidizing species (such as hydroxyl radicals, active chlorine). This not only efficiently inactivates pathogens for advanced disinfection but also oxidizes and decomposes some refractory, poorly biodegradable organic matter (e.g., residuals from pharmaceuticals and personal care products) and can synergistically enhance nitrogen and phosphorus removal. Its core engineering advantage is that, as an advanced treatment unit, its operation does not rely on the continuous, large-scale addition of external carbon sources or chemical agents. This avoids the increased operational costs, secondary pollution, and elevated sludge production associated with traditional advanced treatment processes (e.g., denitrification filters requiring carbon source addition, chemical phosphorus removal requiring aluminum/iron salts). Furthermore, this process does not generate additional chemical sludge, achieving a clean method for advanced water purification.

Sewage first undergoes conventional pretreatment units such as screening, grit chambers, and primary sedimentation tanks to effectively remove large particulate suspended solids and inorganic grit. The pretreated sewage is then directed to the EC Electrochemical Equipment as a unit for advanced phosphorus removal and suspended solids polishing. The micro-flocculants generated electrolytically efficiently remove residual dissolved phosphates and colloidal phosphorus from the biologically treated effluent, while further reducing effluent turbidity and suspended solids, creating optimal conditions for subsequent advanced oxidation and disinfection.

Subsequently, the effluent from advanced treatment enters the CQDHX SERIES EO Electrochemical Oxidation Equipment. In this unit, the equipment primarily performs two core functions: first, utilizing the generated highly oxidizing species to remove residual trace refractory organic compounds and efficiently inactivate all pathogenic microorganisms, ensuring the biological safety of the effluent; second, under specific conditions, enabling electrochemical oxidation treatment of residual ammonia nitrogen. This unit is the core component ensuring the stable compliance of the effluent with high standards (especially where stringent requirements exist for fecal coliform counts, color, and COD).

Finally, the effluent after electrochemical advanced treatment is clear and transparent, with both pathogen and organic indicators reliably secured. It can be directly discharged in compliance with regulations or directed into subsequent ecological wetlands or disinfection contact tanks before final discharge.

Through the CQDHX SERIES EO Electrochemical Oxidation Equipment independently developed by our company, operating in a clean mode without the need for large-scale chemical addition and without generating chemical sludge, it provides key technical support for the advanced purification and safety assurance of domestic sewage. This effectively addresses the limitations of traditional processes in advanced phosphorus removal, disinfection, and elimination of trace pollutants, offering a reliable and economical technological equipment option for the upgrading and retrofitting of municipal wastewater treatment plants, decentralized sewage treatment, and water resource reuse.

For wastewater with special characteristics or unique treatment objectives, our company's engineers provide technical support and solutions.

Technical specifications for 10 tons/day wastewater treatment capacity

Precautions:

1. The equipment must be installed in a well-ventilated, rain-sheltered, non-explosion-proof area.
2. The equipment power supply uses a three-phase five-wire system, and the equipment must be reliably grounded.
3. Do not strike the electrodes with hard objects.

Application Scope:

Wastewater from kitchens, laundry/toilet facilities, medical facilities, schools/shopping malls/office buildings, and initial rainwater runoff, etc.

Wastewater is sewage discharged from the hotel

Wastewater is discharged from the canteen

Domestic sewage treatment process

Process 1

Domestic wastewater

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Screening and Solid-Liquid Separation
(Removes large particulate impurities, residues, etc.)

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CQDHX SERIES EO Electrochemical Oxidation Equipment
(Removal of refractory COD/emerging contaminants/color; highly efficient disinfection; degradation of disinfection by-product precursors)

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Emission

Process 2

Domestic wastewater

↓

Screening and Solid-Liquid Separation
(Removes large particulate impurities, residues, etc.)

↓

Equalization, Homogenization & EC Electrochemical System
(Homogenizes water volume and quality, oil separation, demulsification, removal of suspended solids, degradation of COD)

↓

Pretreatment System (Optional)

(Improve electrochemical usage efficiency)

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CQDHX SERIES EO Electrochemical Oxidation Equipment
(Removal of refractory COD/emerging contaminants/color; highly efficient disinfection; degradation of disinfection by-product precursors)

↓

Emission

Treatment Capacity of Electrochemical Oxidation Wastewater Treatment Equipment