Water treatment apparatus and water treatment method

The compact single-tank water treatment apparatus efficiently removes calcium components by integrating mixing and precipitation processes, addressing inefficiencies and cost issues of conventional systems with a cylindrical design and integrated stirring and flocculant supply.

JP2026100279APending Publication Date: 2026-06-19KUBOTA ENVIRONMENTAL ENG CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
KUBOTA ENVIRONMENTAL ENG CORP
Filing Date
2024-12-09
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Conventional water treatment systems for removing calcium components are inefficient, require multiple tanks, leading to large equipment, high manufacturing costs, and complex maintenance, with calcium insolubles settling issues preventing effective solid-liquid separation.

Method used

A compact water treatment apparatus with a single tank design featuring a cylindrical body for mixing and precipitation, incorporating a stirring device, chemical and flocculant supply devices, and a baffle plate to promote efficient mixing and settling of calcium insolubles, allowing for continuous vertical processing.

Benefits of technology

The apparatus achieves efficient calcium removal with reduced equipment size, lower maintenance costs, and simplified cleaning, while ensuring effective solid-liquid separation without the need for separate reaction and mixing tanks.

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Abstract

To provide a water treatment system that enables more efficient water treatment while also achieving a more compact design. [Solution] A water treatment device 1 for removing calcium components contained in water to be treated comprises a main body 2 for storing the water to be treated, a cylindrical body 3 arranged vertically inside the main body 2 and having an opening 30 at its lower end, a stirring device 4 arranged inside the cylindrical body 3 for stirring the water to be treated inside the cylindrical body 3, a chemical supply device 6 for supplying a chemical agent into the cylindrical body 3 that reacts with and insolubilizes the calcium components contained in the water to be treated, and a flocculation aid supply device 7 for supplying a flocculation aid that causes the calcium insolubilized material generated in the water to be treated to flocculate and precipitate, wherein the flocculation aid supply device 7 supplies the flocculation aid downstream of the stirring device 4.
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