JPS6249996A - Drug for sewage treatment - Google Patents

Abstract

PURPOSE:To obtain a titled drug which can quickly clean up sewage without requiring sewage treatment facilities by kneading calcined plaster and granular magnetic material with hydrogen peroxide water, then solidifying and molding the mixture. CONSTITUTION:The calcined plaster and granular magnetic material (e.g., magnetic iron ore particles) is kneaded with the hydrogen peroxide water and the mixture is solidified and molded. The resulted drug is sprayed onto a water surface, by which the increase of dissolved oxygen, the acceleration of a biochemical reaction, the acceleration of a settling effect and the synergistic effect thereof are induced. The quick cleaning up of the sewage is thus made possible without requiring the sewage treatment facilities. This drug is particularly effective for cleaning up the sewage of a vast water surface in lakes, swamps, etc.

Description

[Detailed description of the invention] (b) Industrial application fields TECHNICAL FIELD This invention relates to sewage treatment agents.

(b) Conventional technology Conventionally, biochemical methods using aerobic bacteria have been used to purify wastewater, and aeration is performed to increase dissolved oxygen in the wastewater, which reduces the precipitation of treated products. Flocculants are used to facilitate this.

(c) Problems that the invention seeks to solveHowever,
Aeration requires a large-capacity aeration tank and energy-consuming blowers, etc., and also requires a sedimentation tank, which increases equipment and running costs, making it particularly difficult to apply to sewage treatment in large areas of water such as lakes. The drawback was that it couldn't be done.

(d) Means for Solving the Problems This invention provides a wastewater treatment method characterized in that calcined gypsum and granular magnetic material are kneaded with hydrogen peroxide solution, and the mixture is solidified and molded. The aim is to provide medicines for patients with disabilities.

(E) Action/Effect According to the present invention, by spraying the agent of the present invention on the water surface, the oxygen contained in the hydrogen peroxide sealed in the hardened gypsum is eluted into the water, increasing the amount of dissolved oxygen. , increases the activity of aerobic bacteria to promote the decomposition of organic matter, suppresses the activity of anaerobic bacteria by making the same bacteria dominant, and prevents the occurrence of bad odors. The component neutralizes the zeta potential of suspended fine particles in wastewater and promotes coagulation and sedimentation of the particles, and furthermore, the granular magnetic material
Based on separate knowledge, we have put into practical use the promotion effect of magnetic fields on biochemical reactions, and the above-mentioned oxygen generation effect, coagulation sedimentation effect,
In addition, the sewage purification effect is strengthened by the effects of the magnetic field and their mutual effects, and there is no need for sewage treatment facilities, especially for sewage in large areas of water such as lakes and ponds, which was considered impossible in the past. This has the effect that the treatment can be carried out by a simple method of spraying the chemical on the water surface.

(F) Example To explain the example of this invention in detail, gypsum is calcium sulfate, which is crystallized and solidified by combining with 6 molecules of crystallized water.This gypsum is heated and calcined to release crystallized water. The raw material is separated and powdered burnt lime.

The material of the magnetic material is not particularly limited as long as it has ferromagnetic material, and in particular, iron sand, which is magnetite particles, is an excellent magnetic material raw material in terms of cost.

Hydrogen peroxide is a strong oxidizing agent that contains approximately 30% hydrogen peroxide and decomposes to generate oxygen, and after generating oxygen, it is reduced to normal water, so it does not cause secondary pollution. There are no concerns whatsoever.

A small amount of phosphoric acid may be added as an inhibitor to prevent decomposition of deoxidized hydrogen during kneading and to control oxygen generation during wastewater treatment.

The above raw materials are kneaded. First, powdered calcined gypsum and magnetic particles are thoroughly mixed in a dry state using a concrete mixer, etc., and the magnetic particles are mixed into the powdered calcined gypsum. After uniformly dispersing the mixture, hydrogen peroxide solution is added to the mixture and kneaded into a paste. At this time, the calcined gypsum absorbs hydrogen peroxide solution as crystallization water and gradually begins to harden, so after the mixing is finished, immediately pour the kneaded material into the designated female mold 2, wait for the kneaded material to harden, and then form the finished product. do.

The female mold used in this case may be of any shape, such as a lump, ring, rod, plate, etc., and can be freely formed. Furthermore, it is also possible to process the molded product into granular powder by pulverizing it.

In this way, the obtained product is mainly sprayed as a sewage purification agent.
Alternatively, it can be used by depositing it, and when immediate effect is required, it is sprinkled in the form of granules, and when sustainability is required, it is used by depositing it.

When the agent of the present invention is sprayed or submerged in water, it has the following effects.

In other words, the hydrogen peroxide sealed in the solidified gypsum decomposes due to the infiltration of water from the surroundings and releases oxygen from the generator, which diffuses into the wastewater and directly oxidizes organic matter, as well as dissolving dissolved It increases oxygen and increases the activity of aerobic bacteria, promoting the decomposition of organic matter, and suppresses the activity of anaerobic bacteria by making aerobic bacteria predominant, thereby preventing the occurrence of foul odors, etc. .

In addition, the magnetic lines of force emitted from the magnetic particles act effectively,
Together with an increase in dissolved oxygen, it promotes the above biochemical reactions.

In addition, since this drug rarely appears in water immediately after being sprayed, it can be used particularly effectively on the bottom of lakes and marshes where dissolved oxygen tends to be insufficient, and it also stimulates the activity of benthic animals.

In addition, solid gypsum is slightly eluted and ionized to neutralize the zeta potential of suspended matter particles in wastewater, so that together with aggregated substances generated during biochemical reactions, the solid gypsum It speeds up coagulation and sedimentation and quickly purifies wastewater.

As mentioned above, the sewage purification agent of the present invention is a single agent that rapidly purifies sewage by increasing dissolved oxygen, promoting biochemical reactions, promoting precipitation, and the synergistic effects of these. This method does not require a sewage treatment facility and is particularly effective in purifying sewage from large areas of water such as lakes and marshes.

Claims (1)

[Claims] 1) A sewage treatment agent characterized in that calcined gypsum and granular magnetic material are kneaded with hydrogen peroxide solution, and the mixture is solidified and molded.