As a grower, Arnold plans to build a plant cultivation cabin in the ark, which is not just a greenhouse, but to establish a miniature planting ecological circulation system.

The difficulty now is that the freshwater resources on the ark are seriously lacking.

Although humans will usher in a flood disaster at the end of the world, the ark will drift on the sea surface after that, and whether it is drinking or planting the sea water will be troublesome.

The seawater treatment device that Ark has already obtained was removed from a second-hand engineering ship that it had acquired before.

The principle is to obtain fresh water through seawater distillation, with extremely limited efficiency. Even if you operate at full load for 24 hours a day, you can only distillate a ton of fresh water.

Based on the full amount of 1,000 people in the ark, this ton of fresh water is barely enough to satisfy everyone's day's drinking.

Not to mention that there are many other places where fresh water is needed, such as cooling water for the machinery and equipment on board, water for everyone's daily life, etc.

Plants eaten by ordinary humans, such as potatoes, rice, cabbage, radish, etc., must also be planted in a freshwater environment, and the amount of water required will be huge.

So Arnold proposed two plans: "Anyone of us wants to eat delicious food, even on the ark, the better we eat, the better our physical and mental health.

However, to plant common crops, I conservatively estimate that I have to use five to twenty tons of fresh water every day.

It depends on whether the crops we grow ourselves are just as side dishes or whether they meet a certain level of food supply.”

Lu Yu twitched his mind and suddenly asked, "You don't have potatoes or anything that can be grown in the sea?"

One-armed Arnold rolled his eyes: "Why don't you build me an efficient and energy-efficient freshwater processor?"

Forehead...

It's really hurting each other.

Lu Yu could only make a satellite phone call with Xiaopang, and Xiaopang is trying his best to get the freshwater treatment equipment from outside.

However, this also made Lu Yu feel sad. As the builder, he had mixed two copies and could not even make a freshwater treatment device.

If it were other reincarnationists, not to mention becoming a tough character like Iron Man, at least it would be fine to build a nuclear reactor?

If I am a character written by a stupid author, I really want to draw a curse to the author...

Arnold felt that he would not have the chance to get enough fresh water for a while, so he proposed a second solution.

"In fact, there is a second option, which is very sustainable and can even be used as a main source of food with as little as possible."

As he said that, Arnold took out a small wooden box, which contained five glass bottles. The glass bottles contained green powder. But after careful observation, the state of each powder was slightly different.

"Algae plants, algae plants growing in seawater environments!

Among these five bottles are the powders of five algae plants, which can be reactivated and grown as long as they are cultivated.

I finally cultivated them in other copies, but they are really good things to save my life.

The nutrients produced by the five algae have their own focus, and their cooperation can basically meet the human body's needs for nutrients."

But when it comes to this, Arnold doesn't seem to have much pride, but instead seems to have something to say.

Lu Yu curled his lips: "Is there anything wrong with it?"

"Well, these algae have many benefits, such as being able to decompose waste sent by humans and animals on the ark as nutrients, and having a yield that is much higher than common crops...

But, um, the taste of these algae is not so easy to eat.

For example, I directly named Protein Algae. It has a high protein content when grown, but it smells like a toilet and tastes like a shoehorn.

This starchy algae is better. It can be processed and then eaten, but the starch produced is far less delicious than ordinary starch crops.

As for the other types, they also have a bad smell and taste."

"Good thing!" Lu Yu picked up a glass bottle and watched it carefully in the sun, and was amazed from time to time.

"Arnau, you can do both plans at the same time, right?" Lu Yu looked back at Arnau, his side face was so calm but firm.

Arnold scratched his head, nodded and agreed: "Okay, I'll list everything I need, and design the cabin."

In the end, almost two-thirds of the space on the top floor of the Ark was allocated to Arnold's planting workshop.

Although Arnold made various requests, Lu Yu found ways to satisfy him within his ability.

After the planting workshop used for food production and the supporting breeding workshop were determined, plus the space occupied by the determined machinery and the living compartment, the space in the ark was already very compact.

In the remaining space, in addition to ensuring certain functions such as medical, entertainment, military, etc., it is necessary to store various materials in a timely manner.

Fuel, food, medicine, fresh water, daily necessities, weapons, etc.

There will be at least hundreds of people living together on the Ark. When the world enters a doomsday state and lacks external supplies, survival supplies will be one of the most important issues.

The planning and design of the interior cabin of the ark has gradually become a major issue in building the ark.

With the design of each functional area, problems that were not considered before were exposed.

For example, Arnold's planting workshop requires sunlight, and the top deck of the ark needs to be arranged with transparent areas, which requires high-intensity translucent materials and special structures need to be designed.

Such problems are constantly emerging. When Lu Yu did not open new plug-ins, he could only use his talents as much as possible, and at the same time, he allowed Xiaopang, who was coordinating outside, to find ways to get materials and equipment.

While ensuring progress, everyone must solve one problem after another.

Some of them are done directly, such as the light-transmitting materials in the planting workshop. Brother Xiaopang found a way to buy back a large number of acrylic boards.

In addition, with some exquisite structural design, the light-transmitting layer is hidden under the deck of open and closed high-performance plates, forming a light-transmitting layer that can be opened and closed.

Some are too time-consuming and energy-consuming and can only choose to compromise, such as the sanitation of living rooms. In order to avoid too complex pipeline design affecting the construction progress, the number of bathrooms has been greatly reduced and has become more concentrated.

Even the sewer and planting workshop circulation systems that were originally planned to be built were cancelled and replaced by human transport of domestic waste to planting workshops for use.

Although the exposed problems are troublesome, they also give Lu Yu, Ross and others a great sense of accomplishment.

Every step forward in the construction of the ark not only boosts morale, but also allows Lu Yu to continuously unlock his rank achievements.

———
Chapter completed!