Carbon Neutral Wastewater Tank Mixer Agitator

SINOU is a professional manufacturer specializing in low-carbon environmental protection wastewater treatment equipment, supplies customized Carbon Neutral Wastewater Tank Mixer Agitator for global industrial and municipal customers. Developed for all kinds of biochemical tanks, anoxic pools, regulating tanks and sludge storage tanks, the mixer forms complete circulating water flow to keep activated sludge suspended evenly, stabilize water quality parameters like COD and pH.

With anti-corrosion material option, IP68 full waterproof protection and intelligent variable frequency control, our agitator achieves remarkable energy saving and carbon reduction. We customize motor power, impeller size, material grade and installation way to build low-carbon wastewater mixing solutions for diversified water treatment projects.

What is Carbon Neutral Wastewater Tank Mixer Agitator?

1. Productt Definition

Carbon Neutral Wastewater Tank Mixer Agitator is a new-generation energy-saving and low-carbon stirring equipment specially developed for all kinds of wastewater treatment pools, designed for carbon neutral upgrading of sewage treatment projects. It mainly completes medium circulation, medicament blending and sludge suspension inside the tank.

2. Core Working Principle

Driven by high-efficiency permanent magnet motor and precision reducer, the large-diameter low-speed impeller pushes continuous circulating flow in horizontal and vertical directions. Uniform water circulation keeps activated sludge, chemical agents and wastewater fully mixed without dead zones.

3. Core Carbon-Saving Feature

Different from traditional agitators with high power waste, it adopts optimized fluid structure and IE4/IE5 high-efficiency motor, cutting running power consumption by 25%~35%, lowering power-generated carbon emissions and helping factories reach carbon neutral goals.

4. Main Functional Effect

Stop sludge sinking and mud crust accumulation at tank bottom, stabilize biochemical reaction environment, improve COD removal efficiency and reduce subsequent sludge treatment difficulty.

5. Diversified Structure Option

Supports vertical top-mounted and submerged rail-mounted installation; optional carbon steel coating, SUS304, SUS316L anti-corrosion materials to adapt corrosive wastewater from printing, chemical and electroplating industries.

6. Main Application Range

Widely matched in municipal sewage plants, printing & dyeing factories, fine chemical enterprises, papermaking and food wastewater treatment projects for regulating tank, anoxic tank and sludge conditioning tank.

Application Fields

1. Municipal Wastewater Treatment Plant

Used in anoxic tank, anaerobic tank, regulating tank and sludge thickening tank to suspend activated sludge steadily and improve biochemical degradation efficiency of domestic sewage.

2. Printing and Dyeing Industry

Installed in dye wastewater conditioning pool and sludge storage tank for uniform mixing of high-viscosity dye sludge, avoiding precipitation and facilitating subsequent filter press dewatering.

3. Chemical & Electroplating Industry

Applied to corrosive wastewater tank and heavy metal sludge blending tank, evenly mix raw sewage and medicament for stable solid-liquid separation.

4. Papermaking Industry

Mix papermaking wastewater and fiber sludge in recovery pool, reduce fiber deposition and increase resource recycling rate.

5. Food & Pharmaceutical Industry

SUS304/316 sanitary type for fermentation residue tank and processing wastewater pool, conform to hygienic production requirements.

6. Other Environmental Projects

Suitable for breeding wastewater, rural decentralized sewage and construction slurry temporary storage tank mixing.

How to Select?

1. Confirm wastewater & sludge medium characteristics

Check corrosivity, liquid viscosity, suspended solids content, fiber/impurity content and PH value of wastewater.

For ordinary municipal domestic sewage, adopt carbon steel with anti-rust coating; for acid/alkali high-corrosion printing, chemical and electroplating wastewater, select SUS304 or SUS316L stainless steel shaft & impeller; high-fiber wastewater chooses anti-winding curved impeller structure to avoid blade winding failure.

2. Confirm tank size & effective volume

Provide tank shape (rectangle/circular), length, width, effective water depth and total effective volume. Calculate required circulating flow rate to match impeller diameter and motor power.

Small pool below 200m³ matches 1.5~3.0kW unit; medium pool 200~1200m³ chooses 3.0~7.5kW; large pool over 1200m³ adopts multiple sets of mixers for combined layout to eliminate mixing dead corners.

3. Clarify process mixing purpose

Anti-sedimentation for anoxic/anaerobic tank: prioritize low-speed large-diameter energy-saving model to form full-tank circulating flow;

Dosing homogenization for regulating tank: select variable frequency adjustable-speed type for uniform chemical mixing;

High-concentration sludge conditioning tank: configure high-torque enhanced structure to cope with high-viscosity sludge stirring.

4. Determine energy-saving & carbon reduction configuration demand

For carbon neutral transformation projects, pick IE4/IE5 high-efficiency permanent magnet motor + VFD variable frequency control to cut 25%~35% power consumption and lower carbon emission; conventional ordinary sewage project can select standard IE3 fixed-speed motor to control initial procurement cost.

5. Choose proper installation mode

Top vertical fixed installation suits open-top circular/rectangular tank with convenient fixed construction; submerged guide rail lifting installation fits closed deep tank, allowing maintenance and inspection without draining pool water, widely used in sealed sludge storage pool.

6. Select electrical protection & special customized configuration

Standard model with IP68 full waterproof grade for common outdoor & indoor tank; flammable chemical wastewater needs explosion-proof motor and explosion-proof electrical components; low-temperature northern regions can add heat preservation anti-freeze customization to avoid motor shutdown caused by freezing.

7. Match supporting auxiliary equipment

Support matching online sludge concentration detector, automatic dosing system, PLC centralized control cabinet and sludge filter press. Realize linkage automatic start-stop of mixer according to real-time water quality index to build full-automatic low-carbon wastewater treatment system.

Operating Precautions

1. Pre-operation inspection

Check motor insulation, shaft seal tightness and impeller fastening before startup; clear sundries inside the tank to prevent winding the mixing blade.

2. No-load dry running

The Carbon Neutral Wastewater Tank Mixer Agitator must be fully submerged under liquid level before startup; dry rotation will damage mechanical seal and motor rapidly.

3. Power & voltage requirement

Keep rated voltage stable; avoid frequent instant startup to reduce electrical impact on the motor.

4. Regular routine maintenance

Add lubricating grease for bearing periodically; inspect shaft seal for water leakage every month and replace aging sealing parts timely.

5. Environment adaptation

Stop equipment when tank liquid level drops below the safe height to prevent idle operation.

6. Corrosive medium maintenance

For acid-base wastewater, regularly clean impeller surface sediment to slow corrosion of stainless steel components.

7. Winter anti-freeze measure

Drain residual liquid inside the machine for long-time shutdown in cold areas to avoid component cracking from freezing.

Customization and Production Process

1. Requirement Communication & Technical Confirmation

Communicate fully with customers to confirm tank dimension, wastewater corrosiveness, sludge property, mixing purpose, energy-saving & carbon neutral standard, installation mode and special requirements like explosion-proof or anti-freeze. Our technical team collects all site parameters to complete preliminary scheme and quotation.

2. Professional CAD Design & Solution Finalization

Engineers adopt CFD fluid simulation to optimize impeller structure and power configuration, make detailed production drawings including shaft size, material grade, control parameter and spare part list. Confirm design draft with clients before formal order signing.

3. Contract Signing & Raw Material Procurement

After customer confirms design and price, sign formal sales contract and receive deposit. Purchase qualified raw materials: carbon steel, SUS304/SUS316 stainless steel, IE4 high-efficiency permanent magnet motor, reducer and mechanical seal; all incoming materials pass chemical composition and appearance inspection.

4. Precision Parts Processing & Anti-corrosion Treatment

Cut, lathe, mill and polish shaft, impeller and flange via CNC equipment; do quenching tempering for shaft to improve rigidity. Carbon steel parts go through sand blasting and anti-rust coating; stainless steel components get pickling passivation for superior anti-corrosion performance.

5. Component Assembly & Electrical Wiring

Assemble reducer, motor, mechanical seal, stirring shaft and impeller strictly per assembly process; finish wiring for frequency converter and control cabinet. Strictly control coaxiality of shaft to avoid abnormal vibration during operation.

6. Full Factory Pre-delivery Test

Complete no-load running test, load simulation test, waterproof inspection and frequency conversion debugging in workshop; check current, rotating speed, sealing tightness and noise to ensure energy-saving index meets carbon neutral design standard; unqualified products will be reworked immediately.

7. Packaging & Shipment Arrangement

Wrap finished agitator with moisture-proof plastic film and foam; key spare parts, control cabinet and manuals are packed into plywood case. Arrange shipment according to agreed delivery term and provide logistics tracking information.

8. On-site Installation Guidance & After-sale Commissioning

Provide installation drawings, operation manual and online video guidance; dispatch technicians for on-site commissioning upon request, train operators for daily use and maintenance.

9. Follow-up After-sales Service

Start 1-year warranty after equipment acceptance; provide lifelong technical consultation and cost-price spare parts supply, support later energy-saving upgrade transformation for old mixing equipment.

Our Services

1. Pre-sales customized solution

Free technical calculation and scheme design according to tank size, wastewater property and carbon-saving target; provide layout drawing and quotation.

2. Installation guidance service

Supply detailed installation manuals, video guidance and online technical support during equipment installation and commissioning.

3. Warranty guarantee

1-year warranty for the whole machine; free repair and spare parts replacement for non-artificial quality problems within warranty period.

4. Operation training

Professional training covering startup operation, daily maintenance and common troubleshooting for on-site operators.

5. After-sales technical support

Long-term online technical consultation and cost-price spare parts supply after warranty expires.

6. Product personalized customization

Customize motor power, material, installation structure, explosion-proof and frequency conversion function to meet special working conditions.

Common Problems & Solutions

1. Impeller winding & blocked rotation

● Cause: Hair, fiber and sundries twine around blades.

● Solution: Stop the Carbon Neutral Wastewater Tank Mixer Agitator and clean foreign matters; select anti-winding curved impeller for high-fiber sewage.

2. Severe vibration and loud noise

● Cause: Loose fixing base; bent stirring shaft; foreign matter stuck on impeller; damaged bearing.

● Solution: Fasten anchor bolts; straighten or replace shaft; clean impurities; renew damaged bearing.

3. Motor overheating and overload alarm

● Cause: Excessively thick sludge increases load; low liquid level leads partial dry running; voltage instability.

● Solution: Reduce sludge concentration; adjust water level above specified height; check power supply circuit.

4. Water leakage at mechanical seal part

● Cause: Aging sealing ring; shaft surface scratched by grit; improper installation.

● Solution: Replace anti-corrosion seal parts; polish shaft surface and reinstall components.

5. Poor mixing, sludge deposits at tank bottom

● Cause: Insufficient matched power; too low rotating speed; unreasonable installation position.

● Solution: Upgrade motor power; adjust frequency to raise speed; optimize installation layout

6. Frequency converter fails to adjust speed automatically

● Cause: Wrong parameter setting; damaged detection sensor; loose wiring.

● Solution: Reset control parameters; replace faulty sensor; inspect and fasten circuit connection.

Matching Supporting Equipment

1. Automatic Dosing System

Add chemicals uniformly into wastewater tank and work with agitator to realize even reagent mixing.

2. Slurry Feed Pump

Deliver raw sludge into conditioning tank, cooperate with mixer for full homogenization pretreatment.

3. Pulse Bag Dust Collector

Match sludge silo feeding system to control dust during sludge conveying.

4. Online Water Quality Monitor

Link with frequency conversion cabinet; adjust mixer rotating speed automatically based on real-time sludge concentration.

5. Membrane Filter Press

Pre-treat sludge via mixing, improve dewatering effect of subsequent filter press.

6. Sewage Lift Pump

Complete whole circulating wastewater treatment together with tank mixing equipment.

7. Intelligent PLC Control Cabinet

Centralized control of all matched devices to build fully automatic low-carbon wastewater treatment line.