JPH02265685A - Quality improvement treatment of water and treating substance - Google Patents

Abstract

PURPOSE:To obtain treating substance containing a component suitable for the quality improvement of water by a method wherein a natural shell fossil containing components of plankton or algae are ground to be dried naturally and further dried at specific temp. by hot air to be purified into a particulate form and this particulate material is further classified by air to be purified into a specific particle size. CONSTITUTION:A natural shell fossil containing components of various nektons, planktons, algae or sea weeds composed of calcareous substance or silicate are ground into small particulate or rough sandy coarse mineral which is, in turn, dried at about 120-450 deg.C by hot air through a rotary kiln A and a cooler B to be purified into a particulate form. This particulate is further ground into a powdery form through a ball mill C and a cyclone D to be finely purified into a particle size of about 0.10-50.00mum. By this method, treatment substance optimum to the quality improvement of water is obtained.

Description

[Detailed Description of the Invention] [Industrial Application Field 1] The present invention relates to a water quality improvement method, and more specifically, a water quality improvement treatment method using a treatment substance containing natural shellfish fossils as a treatment agent, and the method. It concerns processing substances.

[Prior Art] A method for improving water quality by refining natural shellfish fossils into treated substances is disclosed in, for example, Japanese Patent Application Laid-Open No. 141457/1983 (Method for Improving Water Quality Using Shellfish Fossils). There is. This method involves [pulverizing natural shellfish fossils into rough sand-like particles, then heat-treating them so as not to destroy their molecular structure, removing the crystal water contained within a certain effective diameter, and then
By spraying the product processed into a fine powder of mesh size or larger into the water to be improved (treated), and adding ferric chloride or hydrochloric acid as necessary, adsorption and ion exchange and physical, At the same time, the chemical action is promoted in parallel, and at the same time, coagulation and precipitation occur rapidly, and the lignin, blood, printing ink, and paint contained in drinking water, sugar, sediment, waste liquid of sediments, and industrial wastewater are removed. ,Cutting oil,
Improving (processing) single or mixed states of harmful substances such as gasoline, light oil, kerosene, heavy oil, mercury, cyanide, cadmium, chromium, lead, copper, iron, PCBs, cooking oil, detergent, urine, etc. in a short time, and In order to remove odors, the supernatant water after treatment becomes mineralized and can be reused as drinking water, and the sediment can be discarded as just soil. ``A method for improving water quality using fossilized shellfish,'' (claim), but depending on the components of the fossilized shellfish and the method of refining them, the conventional method may not produce good effects and may not be practical. It lacked sex. In addition, the main components of shell fossils are destroyed due to the mixing of cupric chloride and hydrochloric acid, causing various problems.

Furthermore, conventional methods for refining natural shellfish fossils generally employ methods such as lime or sand grains. That is,
The shell fossilized crude ore, which has been roughly crushed in advance, is dried with hot air using a hot air dryer, which has traditionally been used for producing lime and sand grains, and also using metal powder equipment, which is often used for producing iron powder and copper powder. The most common method is to grind it into a powder and refine it. According to this conventional method, each device and machine tool is manufactured for its own purpose, so it is not suitable for producing fossil shells that contain many components, and it reduces its commercial value. was. In addition, many problems arose, such as the extremely primitive manufacturing method and the inability to systematize storage management, making it unsuitable for long-term preservation, which made commercialization difficult.

[Problems to be solved by the invention] In order to solve this problem, it is necessary to use fossil shells that contain components suitable for improving water quality even if they are natural fossil shells.
It is necessary to refine and process this suitable shellfish fossil into a microscopic diameter that can be used as a treatment substance for water quality improvement, and this is the problem that the present invention aims to solve.

[Means for Solving the Problems] The present invention was developed in order to solve the above-mentioned problems, and involves refining and processing natural shellfish fossils containing mainly calcium carbonate and carbon dioxide into fine powder. The main component is a treated substance, and the treated substance is sprayed and mixed into treated water for water quality improvement, thereby simultaneously promoting the physical and chemical effects of adsorption and ion exchange, and rapidly coagulating and precipitating. It is a treatment method for improving water quality, and natural shell fossils containing various nekton, plakton, algae, and seaweed components made of calcareous and silicic acid are crushed into small grains or coarse sandy coarse ore and dried naturally. It is then dried with hot air at a temperature of about 120°C to 450°C to refine it into powder, which is then air classified to have a particle diameter of about 0.10μm to 50.0μm.
A treated substance for improving water quality characterized by being purified to a particle size of about μm.

[Function J] The natural shell fossils used in the present invention were mined from fossil shell veins buried in the Toyama Prefecture region. It is said that the shellfish fossils buried in this region were mainly formed as a result of the physiological actions of animals, and that these remains were sorted and selected under the sea, and then deposited on the ocean floor. ing. In other words, these shell fossils are made up of various nekton (shells, fish), plakton (microorganisms), algae, seaweed, etc. made of calcareous and silicic acid, which were buried alive due to changes in the earth's crust, and were deposited for about 80 million years. To date, it has been discovered that these fish and shellfish and organic substances have not turned into fossils, but have become crystals with tactile properties. be. Due to these factors, calcium carbonate, its main component, is a collection of extremely fine particles secreted from proteins, and is in the form of arabite (scattered stone), so it is not a calcite (decomposed stone). ) A characteristic of shellfish fossils in this region is that they are much more active than those formed by fossils.

The above-mentioned natural shellfish fossils from the Toyama prefecture region were refined into powder and analyzed by the Japan Fertilizer Inspection Association, and the results are as follows.

% Moisture (H2O21.05 Silicic acid total N (5i021 18.42 Magnesium total amount (Mgo) 0.80 Total lime amount (Ca11 40.14 Ignition loss 32.66 Iron oxide (Fe2031 1.55
Oxidation (A12031
G, 90 [Example] An example of the present invention will be described below with reference to the drawings.

FIG. 1 shows an outline of the method for refining and processing natural shellfish fossils according to the present invention. First, it is mined from a vein layer in which natural shell fossils containing various nekton, plakton, algae, and seaweed components made of calcareous and silicic acid are deposited, and crushed into small grains or coarse sand-like coarse ore. The coarsely crushed shellfish fossils are dried and crushed through a rotary kiln A and a cooler B, and then crushed into powder through a ball mill C and a saclone D to obtain particle sizes ranging from 0.10 μm to SO, 00 μm. 8 In this example, a device consisting of a rotary kiln A, a cooler B, a ball mill C, and a cyclone D is used. However, as long as the shellfish fossil product of the present invention can be obtained through this processing step, any device can be used. good.

The particle size distribution measurement results obtained in this example are as follows, and the data results are as shown in the graph of FIG.

CH particle size (μm) Cumulative (%) l b, 17 0.12 0
．． 24 0.3 3 0.34 0.5 4 0.43 1.35 0.66
4.9 6 1.01 10.1 7 1.69 18.0 8 2.63 28.7 9 3.73 39.8 Frequency (%) 0.1 0.2 0.2 G, 8 3.6 5.2 7.9 11.1 1 (15,2751,111,3 117,4666,014,9 121,0,5679,013,0 1314,9211g,3 9.314
2], 10 97.0 8.71
5 29.85 100.0 3
．． 01642.21 1oo, o
o.

Summary data DV O, 3373 lO% 1.01 50% 5.13 90% 16° lO MY 6.80 C32,389 The above data are measured values obtained under the following measurement conditions.

Sample name (ID-1) KAIKASEKI Lot No., (ID-2) (B
) Measurement date and time: 01/10/86-16:20 Measurement range: 0.12-42.2 RUN No.
100 Measurement time (seconds) 60 D V ----- Sample input amount MV...
...Average temperature of deposition weight C8 ...Specific surface area C Effect of the invention J The present invention mainly uses a processed material obtained by refining natural shell fossils containing mainly calcium carbonate and carbon dioxide into fine powder. The treatment substance is sprayed and mixed into the treated water for water quality improvement, promoting the physical and chemical effects of adsorption and ion exchange in parallel, and rapidly coagulating and precipitating. By using only the treated material made of shellfish fossils without mixing other substances, high-quality water quality improvement can be achieved in a short period of time.

In addition, natural shell fossils containing components of various nektons, plaktons, algae, and seaweeds made of calcareous materials and silicic acids are crushed into small grains or coarse sand-like coarse ore, dried naturally, and heated to about 120℃ to 450℃ with hot air. It is dried and refined into powder and granules, and then air classified to approximately 0.1OLt.
Since the particle size is refined to a particle size of approximately 50.00 μm, a treatment substance optimal for improving water quality can be obtained.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram showing the processing steps of the method of refining and processing natural shellfish fossils of the present invention, and FIG. 2 is a distribution graph showing the measured values of products obtained in Examples of the present invention.

Claims (2)

[Claims] (1) The main component is a treated substance that has been refined into fine powder from natural shellfish fossils containing mainly calcium carbonate and carbon dioxide, and the treated substance is sprayed and mixed into treated water for water quality improvement to cause adsorption and ionization. A water quality improvement treatment method characterized by simultaneously promoting the physical and chemical effects of exchange and rapidly performing coagulation and sedimentation. (2) Natural shell fossils containing components of various nektons, plaktons, algae, and seaweeds made of calcareous and silicic acids are crushed into small grains or coarse sand-like coarse ore, dried naturally, and heated to about 120°C to 450°C. Dry with hot air to refine into powder, then air classify to approximately 0.10 μm.
A treated substance for improving water quality, characterized in that it has been purified to a particle size of about 50.00 μm.