This document discusses potential improvements to the wastewater treatment plant (WWTP) at PT. Batamindo Investment Cakrawala. It proposes using new software programs to model and optimize the WWTP system. It also suggests implementing an electrocoagulation system to further purify the water and produce organic sludge that can be processed through an aerobic system to generate methane gas. This would help reduce the WWTP's yearly sludge disposal costs, lower maintenance expenses, and create a new revenue stream from biogas. However, it notes that these changes would require new investments, engineering expertise, and supportive business policies to be implemented successfully.
This document discusses potential improvements to the wastewater treatment plant (WWTP) at PT. Batamindo Investment Cakrawala. It proposes using new software programs to model and optimize the WWTP system. It also suggests implementing an electrocoagulation system to further purify the water and produce organic sludge that can be processed through an aerobic system to generate methane gas. This would help reduce the WWTP's yearly sludge disposal costs, lower maintenance expenses, and create a new revenue stream from biogas. However, it notes that these changes would require new investments, engineering expertise, and supportive business policies to be implemented successfully.
ECMA 制定 javascript 标准 W3C 指定 DOM 标准, DOM 级别分 1 2 3 IE5.5 以上支持几乎全部的 DOM Level 1 其它浏览器支持全部 DOM 1 ,几乎全部的 DOM 2 和部分的 DOM 3
DOM Core DOM Level 2 核心 规定了访问和更改文档内容及结构的一个 API ,此 API 同时包含用于 XML 的接口。 DOM Level 3 Core 规定了访问和更改文档内容、结构及样式的一个 API 。 DOM Level 2 HTML DOM HTML 规定了操作 HTML 文档结构和内容的 API 。 DOM Level 2 Style DOM Style 规定了动态访问及更改内容样式表的 API 。 DOM Events DOM Level 2 Events 规定了访问文档事件的 API 。 通过增加新的接口和新的事件集, DOM Level 3 Events API 对 Level 2 Event API 的功能进行了扩展。
DOM 树的根节点是个 Document 对象,该对象的 documentElement 属性引用表示文档根元素的 Element 对象 文档( Document )节点除了根元素外还可能有其它子节点,如 Comment 节点
DOM 是表示文档(如 HTML 文档)和访问、操作构成文档的各种元素(如 HTML 标记和文本串)的应用程序接口( API ) 以树形结构表示 HTML 文档(或 XML ),定义了遍历这个树和检查、修改树的节点的方法和属性 The DOM is a programming API for documents.