Section Perspective

Wetland Ecological Park Area

The wetland shall be constructed using Design Strategy 3 for the subsided land resulting from coal-mine with high ecological sensitivity in the site to solve the problem of water pollution caused by coal mining. The coal gangue is backfilled as soil, nourishing the growth of plants during the long natural succession. The artificial wetland park can also bring tourists a relaxed and pleasant tour experience.

The collapse area is close to the ponding revetment, and the ability to resist waterlogging and pollution should be considered when selecting the varieties of trees. Aquatic plants with high purification capacity are planted in shallow water areas to improve the quality of water areas.

Mine Theme Park Area

The theme park area of the mining area is built at the mine pit and coal gangue hill in the original site. The coal gangue is reused through the coal gangue utilization method proposed in Design Strategy 1 and Design Strategy 2 . The mine pit style is presented to show the place's memory to visitors.

Mine Plant Configuration

Plants should choose plant varieties with tolerance to a wide range of pH values and drought and barren to improve the soil humidity and temperature conditions, establish the nutrient cycle between plants and soil, and ensure the success of the plant replantation strategy.

02

Inverted pyramids

A digital deisgn for a community that makes a living from e-waste

Acadamic Work

Agbogbloshie, Accra, Ghana

Individual Work

Tutor: Minzhi Lin; Jieping Chen

October 2021

The site is controversial in the capital of Accra, Ghana; this used to be a lagoon where mangroves grew and is now a huge source of pollution. It is called "Agbogbloshie". Locals also nicknamed it "Sodom and Gomorrah," two cities condemned in the Bible. However, the poor living here believes this is a dignified land providing housing and job opportunities. Despite improper burning and dismantling, it has created devastating environmental and health problems for the entire capital. The dumping of e-waste brings them many discarded precious metals, which means a considerable income.

In 2021, the Ghanaian government incorporated it into its utopian urban planning, using it as part of the land for the construction of medical facilities, pulling out the slums on the site, and relocating the dumping site, which not only fails to fundamentally solve the pollution but completely defeat the dignity of the poor.

Based on site characteristics and unavoidable waste dumping, I use phytomining and automation to amplify its site characteristics as an e-waste disposal site and make the e-waste industry harmless while retaining its employment opportunities. At the same time, to ensure the living problem of the poor while using phytomining for soil remediation, the slum is lifted vertically in the form of a giant landscape structure, forming a utopian living form that places the poor on the upper layer. It is an ironic project that celebrates the impartiality of the landscape.

E-waste exported to other countries

E-waste exported to Ghana

E-waste importing countries

E-waste exporting countries

Slum: Old

PM 2.5 > 150 μg/m³ 10 times higher than The maximum limit (WHO): 15μg/m³ Mortality Rate: 80/100,000 >28,000 people/year

Daily Income: GH¢2 ( ＄0.35) ~ GH¢200 ( ＄35)

Population Structure: Young Men & Children 80% of the children have dangerous levels of lead in their blood.

Population: 40,000 Most residents work High Residential

E-waste Burning

Main cause of Air Pollution in Accra Central

Soil Pollution

Poisons such as furans, and brominated into the surrounding

Agbogbloshie

40,000 Women, Men and Children work at Agbogbloshie Density: 0.2m²/person

Water Pollution the Basel Action Network found dangerous levels of dioxins and PCBS in chicken eggs at Agbogbloshie.

Onion Market: 207m from the dumping site

Tomato Market: 446m from the dumping site

Largest Food Market in the Accra Central

E-waste Input: 13,090 ¬ 17,094 tonnes/year as lead, mercury, arsenic, dioxins, brominated flame retardants seep surrounding soil.

Metal

E-waste

Health Problems

Period

More Agriculture. Join Stockbreeding. More Residential structure constrcution.

Period 3 5 YEARS Period 4 3 YEARS

Residential structure of 3 hight & connection

Reactor for e-waste recycling

End-processing

Pre-processing

3 Types Of Public Structure

WORK

Analysis of bulk powder

Processing of bulk powder

Convert to raw meterials

TECHNOLOGY

Auhmented Reality

Energy Efficient Robotics

WORK

Device disassembly

Device shredding

Sorting into e-waste fractions

Grinding into bulk powder

WORK TECHNOLOGY

Machine Vision

Machine Learning & Artificial Intelligence

E-waste collection

Device level sorting

WAGE

￡7.83 / hour in the UK

￡1.29 / hour in Agbogbloshie

Modelling by Grasshopper

Reactor for phytomining

The ash is mixed with water and electrolysis is then used to extract the metal from the mixture.

Hyperaccumulators are delivered into the second layer of the reaction for incineration.

The ash is then delivered to the third layer of the reaction.

Hyperaccumulators are grown in an area with high grade ores

Hyperaccumulators are harvested and transported into the bottom layer of the reaction by the poor.

Modelling by Grasshopper

hydrolysis

Incineration