Detailed Quotation Analysis of Domestic Sewage Treatment Equipment – Influencing Factors, Price Ranges & Equipment Selection Guide

In the promotion of rural revitalization, urban environmental upgrading and supporting construction of residential quarters, the quotation of domestic sewage treatment equipment serves as the core basis for project approval, procurement budget and scheme selection. There is no fixed unified price for domestic sewage treatment equipment. Its quotation is determined by multiple factors including treatment capacity, effluent standards, process configuration, materials, installation and operation & maintenance. Combined with the 2026 market situation, this paper systematically analyzes the pricing logic of domestic sewage treatment equipment, providing professional and actionable quotation references and purchasing guidelines for engineering contractors, property management companies, rural projects, enterprises and public institutions.

I. Six Core Factors Affecting Quotation of Domestic Sewage Treatment Equipment

Price differences of domestic sewage treatment equipment essentially stem from disparities in configuration and standards. The key dimensions determining prices are as follows:
Daily Treatment Capacity
Water volume is the foundation of quotation. Equipment is classified into small-scale (1-50m³/d), medium-scale (50-500m³/d) and large-scale (over 500m³/d). Larger capacity brings higher costs for tanks, pumps, valves, electric control and biochemical systems, resulting in stepped price increases.
Effluent Quality Standards
Compliance with Grade 1 A, Grade 1 B, Grade 2 or reuse standards directly determines process complexity. Facilities meeting Grade 1 A and reuse requirements are equipped with MBR membranes, advanced filtration and disinfection units, with quotations 30%-50% higher than those for conventional standards.
Type of Treatment Process
A/O Process: Low cost and simple maintenance, suitable for ordinary domestic sewage, corresponding to the basic price range.
MBR Membrane Process: Delivers stable clear effluent with small footprint; membrane components account for 30%-40% of total cost, leading to higher quotations.
SBR Process: Strong tolerance to fluctuating water flow, ideal for intermittent drainage scenarios, with prices between A/O and MBR systems.
Micro-power / Integrated Purification Tank: Designed for scattered rural households, featuring low construction cost and fast installation.
Equipment Materials
Anti-corrosion Carbon Steel: Cost-effective mainstream option, applicable to buried and indoor conventional environments.
Fiberglass: Excellent corrosion resistance, lightweight and longer service life, priced higher than carbon steel.
Stainless Steel (304/316L): Acid and alkali resistant, suitable for humid or corrosive environments with the highest cost.
Installation and O&M Conditions
Buried installation requires earthwork, bedding and anti-seepage treatment, while above-ground installation cuts civil engineering costs. Intelligent configurations such as remote monitoring, automatic chemical dosing and unattended operation will push up quotations.
Brand and After-sales Service
Formal manufacturers provide full services including design, transportation, installation, commissioning, warranty and long-term maintenance. Small workshops offer low upfront prices yet no quality guarantee, often failing to meet effluent standards and bringing high hidden costs in later operation.
II. Mainstream Quotation Ranges of Domestic Sewage Treatment Equipment in 2026
The prices below are market references for standard configurations complying with national effluent standards; final prices depend on customized schemes:
1. Classified by Treatment Scale
Small-scale (1-50m³/d): 12,000 – 200,000 RMB, suitable for scattered rural households, homestays, office buildings and highway service areas.
Medium-scale (50-500m³/d): 200,000 – 1,500,000 RMB, suitable for residential quarters, schools, hospitals and town communities.
Large-scale (over 500m³/d): Above 1,500,000 RMB, suitable for industrial parks and centralized municipal sewage stations.
2. Classified by Process and Scenario
Single/Connected Rural Households (1-5m³/d): 12,000 – 50,000 RMB, micro-power or A/O process with anti-corrosion carbon steel.
Small Communities / Scenic Spots (10-50m³/d): 80,000 – 300,000 RMB, optional A/O or MBR with fully automatic operation.
Residential Quarters / Hospitals (around 100m³/d): 200,000 – 500,000 RMB, MBR process to reach Grade 1 A effluent standard.
Town Centralized Treatment Station (500m³/d): 800,000 – 2,000,000 RMB, complete biochemical plus advanced treatment set.
III. Complete Cost Breakdown of Formal Domestic Sewage Treatment Equipment Quotation
Quotations from regular manufacturers are all-in-one delivered prices covering the following items:
Main Equipment: Biochemical tanks, membrane modules, aeration systems, sludge recirculation devices, disinfection units.
Auxiliary Accessories: Pumps, valves, sensors, pipelines, cables, control cabinets.
Transportation Fee: Calculated based on transportation distance and equipment weight.
Installation Construction: Foundation pouring, equipment positioning, pipeline connection, electrical wiring.
Commissioning & Acceptance: Microbe culture, parameter optimization, effluent testing, acceptance documents delivery.
O&M and Warranty: 1-2 years quality warranty, lifelong maintenance, operation training.
Tax and Invoicing: Tax-inclusive formal quotation with complete invoices provided.
IV. How to Obtain Accurate and Reasonable Quotation Efficiently
Clarify core demands: Provide daily treatment volume, raw water quality, effluent standard, installation mode (buried / above-ground) and site dimensions.
Choose qualified manufacturers: Prioritize manufacturers with environmental assessment qualifications, abundant project cases and accessible factory inspection.
Request itemized quotation: Reject vague lump sum prices and ask for separate breakdown of equipment, installation, transportation and after-sales fees.
Evaluate comprehensive cost performance: Do not judge merely by low upfront price; compare initial investment, long-term O&M cost, service life and after-sales support.
Apply policy subsidies: Rural domestic sewage projects are eligible for local environmental subsidies to reduce total investment.
V. Common Pitfalls to Avoid When Purchasing Based on Quotation
Avoid over-specification blindly: A/O process suffices for ordinary domestic sewage; unnecessary MBR upgrade will increase cost by 30%.
Avoid over-grade materials blindly: Anti-corrosion carbon steel meets demands for conventional environments; full stainless steel is not compulsory and raises material costs.
Beware of ultra-low price traps: Cheap equipment usually adopts thinner tank plates, inferior pumps and valves without after-sales service, easily resulting in substandard effluent.
Confirm all-inclusive scope: Clarify whether installation, commissioning and acceptance are covered to prevent extra surcharges in later stages.
Attach importance to long-term O&M cost: Select processes with easy maintenance, low energy consumption and accessible consumables to cut long-term operation expenses.
Summary
The quotation of domestic sewage treatment equipment is not a single figure, but a comprehensive reflection of project demands, discharge standards, equipment configurations and supporting services. Accurate pricing is based on clear project parameters and compliant effluent requirements. By cooperating with qualified manufacturers, customizing processes according to actual needs and confirming full-package services, you can control budgets while ensuring long-term stable equipment operation and standard-compliant discharge.
If you need a one-on-one precise quotation and customized scheme tailored to your project’s water volume, site conditions and effluent standards, you may contact professional manufacturers for on-site survey and design, so as to acquire the most cost-effective sewage treatment solution.