GB/T 43419.1-2023Remediation and control of heavy metals in paddy field—Part 1: General principles (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document is Part 1 of GB/T 43419 "Heavy Metal Control in Rice Fields". GB/T 43419 has published the following parts.

---Part 1. General provisions;

---Part 2. Passivation conditioning;

---Part 3. Physiological barrier.

Introduction

GB/T 43419 "Heavy Metal Control in Rice Fields" is a technical standard to guide the control of heavy metals in rice fields. It aims to guide the management of heavy metals in rice fields.

Work process, through selecting appropriate treatment technologies, to achieve safe production in contaminated rice fields. GB/T 43419 is planned to consist of three parts.

---Part 1. General principles. The purpose is to provide general technical guidance for the entire process of heavy metal control in rice fields.

---Part 2. Passivation conditioning. The purpose is to select appropriate soil control methods for single and compound pollution of cadmium, mercury, arsenic, lead and chromium in rice fields. Provide technical guidance on appropriate passivating conditioners.

---Part 3. Physiological barrier. The purpose is to provide technical guidance for selecting appropriate physiological barrier agents for heavy metal control in rice fields.

This document is Part 1 of GB/T 43419, which standardizes industry terminology, divides heavy metal control units in rice fields, categorizes management and treatment Provide overall technical guidance for the entire process including management, project implementation and acceptance management to promote the improvement of soil quality in my country's heavy metal-contaminated rice fields and agricultural The products are produced up to standard, achieving sustainable utilization of soil, and providing standardized support for the development of the environmental protection industry for heavy metal control in rice fields. Heavy metal control in rice fields Part 1. General Provisions

1 Scope

This document stipulates the basic principles, work procedures, preliminary preparations, division of treatment units, classified management and treatment methods of heavy metals in rice fields. Project preparation, project implementation and acceptance management, etc.

This document is applicable to the classified treatment of rice fields contaminated by heavy metals such as cadmium, mercury, arsenic, lead and chromium.

This document does not apply to dry farming and the treatment of radioactive heavy metal contaminated rice fields.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB 15618-2018 Soil Environmental Quality Agricultural Land Soil Pollution Risk Management and Control Standards (Trial)

GB/T 43419.2 Heavy metal treatment in rice fields Part 2: Passivation conditioning

GB/T 43419.3 Heavy metal control in rice fields Part 3: Physiological barrier

3 Terms and definitions

The following terms and definitions apply to this document.