Date seed powder for water filtration treatment

Patent metadata

Field	Value
Publication number	US-12357927-B2
Application number	US-202318449496-A
Country	US
Kind code	B2
Filing date	Aug 14, 2023
Priority date	May 27, 2021
Publication date	Jul 15, 2025
Grant date	Jul 15, 2025

Abstract

Systems and methods for generating and using a water filtration media containing date seed powder are provided. The method of generating the date seed powder for use in a water treatment system includes drying the date seeds, cleaning and removing the date seed envelopes, grinding the date seeds, and segregating the date seed powder according to a predetermined particle size. The method of using the date seed powder to treat water includes using a treatment tank with a date seed media bed layer, introducing water, and filtering suspended solids from the water stream using the date seed media bed layer. The system utilizing the date seed media bed layer includes a treatment tank, a date seed media bed layer, water inlets and outlets, backwashing equipment, and media support screens.

First claim

What is claimed is:

1. A system for water treatment, the system comprising:
a treatment tank configured to hold water;
a water stream inlet, operable to allow a water stream to enter the treatment tank;
a date seed media bed layer positioned within the treatment tank, operable to filter the water stream by removing suspended solids, the date seed media bed layer comprising a date seed media, wherein the date seed media comprises date seed powder, wherein the date seed media is prepared in a date seed media product system, the date seed media product system comprising:
a dryer operable to dry unprocessed date seed to produce dried date seed;
a shaker operable to clean and remove a seed membrane from the dried date seed to produce date seed mass;
a heavy duty grinding mill operable to grind the date seed mass to generate the date seed powder; and

one or more segregating mechanism operable to segregate the date seed powder based on particle size to produce the date seed media;
a media support screen positioned within the treatment tank, operable to retain the date seed media bed layer; and
a treated water stream outlet, operable to allow a treated water stream to exit the treatment tank.

2. The system of claim 1 , further comprising:
a backwash stream provided to the bottom of the treatment tank, operable to backwash the date seed media bed layer after a filter operation criterion has been triggered; and
a backwash outlet stream, operable to remove water and debris generated during backwash from the backwash stream.

3. The system of claim 1 , further comprising an alternate media bed layer.

4. The system of claim 3 , wherein the alternate media bed layer is comprised of an alternate media selected from the group consisting of: anthracite; quartz; sand; garnet; magnetite; glass beads; walnut shell; granular polyvinylchloride; silica; and combinations of the same.

5. A method of producing a water filtration media, the method comprising the steps of:
drying an unprocessed date seed to generate a dried date seed;
cleaning the dried date seed, such that minimal debris is on a surface of the dried date seed;
removing a date seed membrane from the dried date seed to generate a date seed mass;
grinding the date seed mass in a grinder to generate a date seed powder;
selecting a predetermined particle size proportional to a suspended solids content in a water stream, the predetermined particle size operable to accumulate suspended solids from the water stream within the date seed powder when the water stream is treated; and
segregating the date seed powder according to the predetermined particle size to generate a date seed media, such that the date seed media is operable to treat the water stream through filtration.

6. The method of claim 5 , wherein the step of segregating the date seed powder according to the predetermined particle size to generate the date seed media is performed by sieving the date seed powder in graduated sieves.

7. The method of claim 5 , wherein the step of selecting the predetermined particle size further comprises selecting the predetermined particle size to allow the suspended solids to penetrate the date seed media bed layer an optimum distance.

8. The method of claim 5 , wherein the steps of cleaning the dried date seed and removing the date seed membrane are performed using a shaker.

9. The method of claim 5 , wherein the method is performed with an absence of chemicals.

Assignees

• Saudi Arabian Oil Co

Inventors

• Wang Qiwei
• Al-Tawfiq Ali

Classifications

• B01D24/007

  with multiple filtering elements in series connection · CPC title

• C02F2303/16

  Regeneration of sorbents, filters · CPC title

• C02F1/286

  using natural organic sorbents or derivatives thereof · CPC title

• C02F1/004 Primary

  using large scale industrial sized filters · CPC title

• B01D2101/00

  Types of filters having loose filtering material · CPC title